I'm glad to finish this...

[okamichan]

...but why won't my muse cooperate for the other fics in my too long of a list to finish. Especially since I have another sticky that I've been working on for a couple of weeks now, and this one only took me a few days to write. *headdesk* 
Title Three's a Crowd
Pairings Sunstreaker/Sideswipe/femme!Prowl
Summary Follow-up to It Takes Two to Tango, Sideswipe comes home from his business trip.
Warning Mechanical sticky. Twin groping, bit of a LamboSammich as well. Obligatory butchering of Prowl's character joke here.


A femme lay next to him.

Dried lubricant formed a crust on his lips, though the sweet smell had faded away to nothing. His glossa squeaked across the corner of his mouth, trying to clean some of the gunk off his face. He had an arm wrapped around the femme's waist, holding her tightly to him.

He released her, sweeping his hand up her doorwing as he pulled away.

She grabbed his hand, her optics brightening slightly as she gave him a half smile. Then she tucked his arm back around her waist and snuggled closer, tossing her leg casually across his hips.

He stiffened, his engine grumbling as she pressed against his inactive hardware.

Her lips caressed over his neck, content with stroking her fingers on the same spot on his side over and over so that she didn't have to move her hand.

His systems twitched, and he wanted to tell her to stop, but he couldn't find the energy. Even as annoying as it was, it felt too fragging good for him to command his vocalizer online. His hand tightened around her waist, and he eyed her frame, frowning at the small dents and dings in it.

“You were really depleted last night,” she purred into his throat.

He hummed in response, his hand wandering from her waist to her aft, and the hidden seam where her pelvis met her thigh. He really didn't think he'd been all that depleted; he had managed another go at her before dropping off line.

The thought of the previous night's activities made him moan with pleasure.

Her mouth spread into a smile against his neck and she reached up to kiss his chin, stroking a hand down his audio vent.

He moaned again, spreading his palm to cup her round aft. An idle finger traced the line of her right rotator. He tilted his head to kiss her lips, metal squealing pleasantly together.

His spark stirred, pulsing gently in his chest with the awareness of his twin.

::Have company, bro?::

::Fragger when'd you get back? Where the slag are you now?:: He pulled away from the femme in his arms, seeking out a positioning on his twin.

::I landed a few cycles ago, I'm in the lift, and on the way up. I wish Prowl were there. Primus I've missed you both.::

Sunstreaker laughed out loud.

Prowl blinked at him. “What's so funny?”

Sunstreaker stretched out on the berth, feeling his twin step out of the lift. “Sides is home. He'll be coming through the door in a tic.”

Prowl's optics lit up, and she pushed herself up, looking toward the door.

Sunstreaker eyed her frame, admiring her curves. He sent a tendril of need through his bond to his brother. ::I think you'll like my company.::

The outer door hissed open and footsteps Sunstreaker could identify even in recharge came right up the hallway, without bothering to stop by the dispenser. ::Primus, I think I'll take anyone right now. Even that slaghead courier mech from Altihex. You remember him, right, the one called Blu-::

Hydraulics whined to a halt at the door. Sideswipe stood there, optics wide as he stared at the two bots on Sunstreaker's berth. His gaze traveled over Sunstreaker, and then turned to Prowl, optics darkening even as his mouth hung open, twisted between hunger and anger.

Prowl pulled one of her legs up, draping her arm on her knee joint. Her optics flashed at the red mech, head tilted to gaze at him from under her chevron. Her doorwings angled out, catching the light coming through the window. “Hello, Sideswipe.”

Sideswipe's jaw dropped a few more micrometers, and Sunstreaker could have laughed aloud at the jumble of betrayal/lust/anger coming through their bond.

::What the frag? Sunny!::

Sunstreaker held back the grin, and stared at her, burning the image into his memory: the way the light played over her perfect little breasts, the half-lidded optics that gazed wantonly at his brother.

::What the frag, what, Sides?::

His fingers twitched with the desire to get the image into a tangible form.

Sideswipe composed himself and leaned against the wall. He crossed his arms over his dull red chest. A frown finally pulled the corner of his mouth down as he glared at the two on Sunstreaker's berth.

::What the frag are you doing with my femme, Sunny?::

Sunstreaker stood, stalking over to his brother. Sideswipe's optics followed his approach, though he didn't move so much as a servo. Sunstreaker hooked his fingers around one of his brother's audio horn and crushed their lips together, forcing his glossa into the other's mouth. ::It's not my fault.::

::Oh really?:: Sideswipe responded, kissing back. His arms wrapped around Sunstreaker's naked back to mash their chests together. ::I find you two plateless on your berth? And it's not your fault?::

::Yes.:: Sunstreaker grunted as his brother's hands played with the gears and rods in his back and he crushed the mech against the wall, scraping his hands along seams he hadn't touched in far too long.

Sideswipe's engine revved and he shoved Sunstreaker back without releasing his mouth. ::Frag that!:: His hands went from the open back to Sunstreaker's arms, caressing the bare shoulders with a hunger that wouldn't be denied.

Sunstreaker staggered against the berth, trying to stay upright. Sideswipe lunged forward and they toppled over together. Sunstreaker became too preoccupied with catching Sideswipe's hands to form a coherent answer. Sideswipe's hands were everywhere, finding all the sensitive areas left exposed to his fingers.

He pushed himself down the berth, trying to put just a little space between he and his brother. He didn't want the mech to stop touching him-oh Primus, he'd beat him to hot slag if he did-he just wanted to be able to think of a response.

Sideswipe would not win this argument.

::Not. My. Fault.::

::You know how I feel about this, Sunny!:: Sideswipe didn't relent his hold, forcing Sunstreaker to drag him along.

Sunstreaker was dimly aware of Prowl's stare, but he didn't have time to give the femme any more than a bare sensor sweep of consideration. All his focus remained on keeping the upper hand on Sideswipe, making the mech writhe above him.

Sunstreaker growled, and tried to boost Sideswipe off to the side. Sideswipe still clung to him. They tumbled off the berth, landing in a tangle of arms and legs. Sideswipe grunted, having taken the brunt of the fall with his back. Sunstreaker lay sprawled atop him, and he slammed the black hands to the ground. Their ventilators whirred, working hard to cool their systems.

::If your femme goes around, throwing herself at me like some little doll, well, how the frag is it my fault?::

Sideswipe pushed Sunstreaker away. ::You're an aft.::

Sunstreaker smirked and pushed back to press another kiss on his brother's lips. ::Missed you, too, slagger.::

He moved to get up, and caught a pair of wide blue optics staring down at the two of them.

“I can't believe you didn't stop kissing that whole time...”

Sideswipe's head fell back down and he laughed. Sunstreaker didn't fight the arms that wrapped around him and pulled him down for another kiss. Their lips slid together with squeaks and squeals. Sideswipe hummed into Sunstreaker's lips, a pleasing sound that Sunstreaker hadn't heard enough of in the past few decacycles.

Sunstreaker shot a smirk towards Prowl as he finally gained his feet. “I'm going to work. You two don't kill each other in here.”

Sideswipe's grin slipped off his face. ::But I just got home!::

Sunstreaker huffed as glowered at the two. ::And I'm not getting dragged into this. Besides I had a flash of inspiration.:: He didn't wait for any further reply, ignoring Sideswipe's attempts to reach him through their bond.

~*~*~*~

Sideswipe glared at the ceiling. Prowl's doorwings hovered in his peripheral vision, her gaze heavy on his sensors. His hardware twitched, ready and far too eager to be put to use.

“What the frag was that about?” Prowl asked. The berth creaked as she disappeared out of his view.

Sideswipe didn't bother to look toward her. “You.” He pushed himself off the floor.

“Me? What the slag did I do this time?”

Sideswipe snapped his head toward her, glare turning into a full-out scowl. She stared back, confusion on her face. His jaw opened and closed as he tried to work his vocalizer. Finally he just clenched his dental plates and stalked out of the room.

“Oh fraggit!” Metal clattered on the floor, following him out and into the dispenser area.

Sideswipe took a single cube down from the cupboard, setting it on the counter so that he could grab a few additives from the drawers under the counter.

“Sideswipe, really. You're being an aft again.”

Sideswipe glared at her, optics blazing. He slammed the drawer he'd been rifling through closed. “Oh, really? And you're perfectly harmless? How many other mechs were you with while I was away.”

Prowl rocked back on her heels, face slack with surprise. “What? Wh- I never-” She snapped her mouth close to level a heated glare of her own at the red mech. “No one! I couldn't have you, so I went for the next best thing!”

Sideswipe froze, his vocalizer buzzing with laughter and surprise at her choice of words.

“I'm slagging sick of how possessive you always are. Slaggit, you can't tell me that you went without a single interface that whole time. But me?” She buzzed her vocalizer off. “I'm not arguing this over with you again. I thought you wouldn't mind if it was Sunny.” She sharply turned and stomped off. “Welcome home, Slagswipe.”

He snarled, and lunged for her. He snatched at her arm, spinning her back toward him. He swung her around, using her momentum to toss her into the wall. Sideswipe held her there with his body, his arms braced on the wall behind her. “You little glitching, alley doll! What the frag do you want from me? Sunstreaker's the last mech I'd want you interfacing with when I'm gone! You're the one thing- the one- the one person in my life that I don't want to have to share with him. You have needs! Yes, I realize this! Could you at least do it where I don't have to come home to you in the berth with him. I don't bring femmes here when I know you're waiting on me.”

Prowl pulled her hands over her chest, as though only then realizing her lack of plating. “Oh...”

Sideswipe vented, frowning down at her. “Yeah, 'Oh'.” He narrowed his optics at her, and leaned down a little to meet her optics. He arched an optic ridge. “Slagswipe?”

Her optics brightened and she looked everywhere but him. “Shut up, okay! I was overheating and it's the first thing that popped into my processor.”

He chuckled, rubbing his nasal ridge against her cheek­, enjoying her embarrassment.

She squirmed against the wall, doorwings scrapping the tiling. “Oh, hush! Like you haven't done it, too. 'Sparkles' my aft.”

He stared at the blue femme, all too aware of her state of plating. His engine gave a pleased rev as he admired her clean lines, even the yellow that streaked over her dermaplating. His smile tilted into a smirk. “Sunny's the next best thing is he?” he murmured lowly so that he didn't risk his brother overhearing.

She met his optics, the light in her eyes dimming down to a pale blue. “Don't you dare tell him I said that either! Then I'd have to hear every single one of your faults and how he's so much better than you.” She narrowed her optics, tilting her head to give him a peck on the lips.

Sideswipe shifted, taking one of his hands off the wall to caress the tips of his fingers over her shoulder. “Can I hear it a few more times though?” he asked as plaintively as he could. He pouted at her, trying for a cybercub look.

She smiled at him, lips curving beautifully as she practically draped herself against the wall. “You can hear it whenever you like, Slagswipe.” She paused and glanced around his shoulder. “As long as Sunstreaker isn't in receiving range. Matter of fact, I'll leave that for comm only.”

Sideswipe laughed, and then swooped in to claim lips that he hadn't tasted in too long.

She made a small sound of protest to the sudden action, but didn't fight him off. Her arms slid around his neck, pressing her naked frame to his chest. His engine revved, and his ventilators cut back on and he wanted more.

He dropped his hands to her waist, clenching at the curve of her hips. He tightened his grip and lifted her feet off the floor.

She yelped, breaking away from his kiss and staring it him with wide optics. “Sides?”

He pursued her lips, murmuring against them in a hoarse voice. “I want your legs around me.”

She giggled, flicking her doorwings. “You've still got plating in the way.” One of her hands slid down his red chest, igniting every sensor her fingers passed, to grope his plated hips.

He tossed his head back and moaned. He pawed at one of her legs, unable to tell which in his eagerness to have them around him. Metal squealed as he pressed her into the wall. His glossa swept into her open mouth, desperately, needfully.

She moaned into his mouth, her legs scraping up his thighs.

He whimpered, pressing her into the wall. Prowl's frame scraping over his dermaplating had him gasping. His hardware stirred, still active from his brief romp with Sunny. Sideswipe kissed down her neck, nipping at her dermaplating. He bent, grinding his hips against hers and he dragged his dental plates down the curve of her breast.

Her ventilators started, whirring within her chest. She vibrated against his face. Her arms wrapped around his head, clutching at his head as he played his glossa over her sensor node.

“Sides...” Her throaty whisper breezed over his audio horns, her lips playing over the jointed sensors.

He wailed into her chest, metal giving under his fingers.

She arched her back, releasing his horn with a soft squeal.

“Primus!” He reached up, catching her gasping mouth, the sweet scent of lubricant strong in his sensors, burning his lips. “I want you, I want you, I want you.” He couldn't stop whimpering into her lips. He released one of her legs, to fight the latches of his hip plates off.

She shook her head. “I'm not ready yet.”

He moaned, and stopped unlatching his hip plates to grope at her breasts.

Power surged through his hardware, painful zaps that jolted his waist. He bit at the soft metal of her neck, whining and flinching. “It's been too long, I don't want to wait.”

His hand dropped and snapped off the last of the latches.

Her hands slapped down on his shoulders and she pushed at him. “Sides, no!”

The plating fell away and his shaft pressed against her crotch. He scrabbled through his subspace, sifting through it until he pulled out a long cylindrical object.

Prowl squirmed in his arms, but he held her securely against the wall. “Sideswipe, don't. It'll hurt!”

He nipped at her shoulders, unable to stop the shaking in his fingers as he worked the cap off the tube in his hands. “I've got it covered, Sparkles. I don't want to-don't wanna hurt'cha.”

She stilled, staring down at him.

His optics half-lidded he could barely make out the glow of her optics, intent on squeezing the cold gel onto his fingers without spattering too much on the floor. He kissed her jaw, nipping at the seamless dip that covered the cabling that went between the hinges.

He managed to get a good enough-sized dollop into his palm and he tentatively touched his ready shaft. The cold gel ignited the hypersensitive relays, making him hiss between his dental plates. He rubbed the lubricant over his hardware, whimpering as his fingers hit each peripheral jack.

He nearly dropped Prowl.

Primus, just touching himself had almost made him overload right there. He wouldn't be able to support Prowl and have his way with her at the same time if he was that excited.

He kissed her again, invading her mouth with his glossa. His lips scraped over hers, even as he switched his grip and groped to his left for the counter he knew to be there. He pulled her across the wall. Her doorwings shrieked almost unpleasantly as metal dragged against metal. He could hear the ping of her rods and gears striking the wall as he moved her.

Her legs tightened around him, teasing the edge of her port across his shaft

He froze, panting with unrealized desire, pressure building in his thighs to begin the thrusting that would bring him release.

He focused on her, the half-lidded optics that stared at him, the smile that curved full lips, moist with sweet lubricant.

Her optics flashed at him, and she shifted her weight in his arms. Her port teased over his shaft again, making him gasp and whine, and then she settled over him, and pushed down.

He slammed her against the counter, hips gyrating helplessly at the onslaught of sensation from his hardware sliding into her. “Ah-h, Pro-” He couldn't seem to form coherent words, unable even to find the lips he knew were near. He could only thrust at her port, her waist secured in his hands.

Her doorwings scraped against the bottom of the cupboard, a noisy counterpoint to both of their whimpering gasps.

She rocked into his thrusts, and he glimpsed her hands clenching the bottom of the cupboard and the top of the counter. He wanted to ask if she was comfortable, but the words refused to register in his processor.

His spark stirred, sending tendrils through linked systems that should not have been touched by his current activities. Shivers wracked his shoulders, and made his hips buck harder into her. He teetered on the edge of a system overload and he hadn't even scraped against her plug yet. “S-stop!”

Prowl froze in his arms, optics glowing in alarm at him. Her legs loosened around him, and she moved as though to pull away. “What's wrong?”

“No!” He clung to her, finding her lips. Another surge burst through his systems and he cried out, “Sunny, Sunny, stop!”

Too focused on the feel of her around his hardware, and pressed against his frame, he couldn't see where her optics turned.

Smug desire filtered through his bond, along with the awareness that Prowl had turned her optics to the doorway.

Her legs tightened around him and she met his thrusts again. She pecked at his lips, the smell of sweet lubricant sending spikes through his systems.

Sunstreaker touched his back, a soothing caress over his canopy. His brother stepped closer, careful not to hamper Sideswipe's rocking hips. Lips pressed against his neck, and Sunstreaker stroked the black audio horns lovingly.

He scraped across the plug at the back of her receptive port. A whine burst from a vocalizer strained with power surges.

She continued to hold his chin, kissing, nibbling and licking at his face.

Their bodies pressed against his threatened to overheat his systems. He couldn't stop though, the need to continue thrusting overrode all else. Not even the low warnings of his holding tanks could convince him to stop.

Sunstreaker stood to the side, his shaft scraping at Sideswipe's aft. The odd bulk of his brother's hardware informed Sideswipe that his brother had jacked into a peripheral. He kissed and nipped at his brother's neck and shoulders, hips moving forward whenever Sideswipe pulled back from Prowl.

Sideswipe stared at nothing, so overcome with the sensation of his lovers around him. He panted, focused on slamming his plug into Prowl's port.

When the connection was finally made, all three cried out in overload.

Sideswipe sagged against the femme in front of him, resting his head on her chest. “There was one, but she wasn't...” He moaned, gyrating his hips to feel the connection surge. “She wasn't... oh Primus, I love you.”

Two sets of hands caressed over his head and shoulders and he honestly couldn't tell them apart from each other.

Sunstreaker pulled away first, stepping back to lean against the wall where the dispenser sat.

Sideswipe could feel the stirrings that was his brother's artistic desires and usually resulted in his more erotic paintings.

“Not sure I wanna do that, bro.” He shook his head, forcing himself upright.

Prowl looked at him, confusion written on her face. Her neck bent at an awkward angle, and he realized how uncomfortable she must be. He hadn't even sat her on the counter properly, merely braced her back against it.

“You didn't mind with Nebs.”

Sideswipe gently lowered his lover's feet to the floor. He inspected her back with his fingers.“You pay Nebs to pose like that.” ::And I don't think Prowl would appreciate the kind of attention that usually comes from you painting.::

Sunstreaker didn't reply verbally, but sent a mote of reluctant understanding through the bond. He snatched the cube from the counter and turned to fill it from the dispenser.

Sideswipe accepted the full cube, no longer caring about the additives he originally been looking for. He downed a third of the mid-grade inside and handed the cube to Prowl.

Prowl's optics flitted between him and his brother before she took her third and handed the cube to Sunstreaker. “I wouldn't mind posing for Sunny.”

Sunstreaker frowned, cube halted at his lips. “Don't call me Sunny.” He downed the rest of the cube and stalked off.

Sideswipe nuzzled his nasal ridge across her neck. “Trust me, Sparkles, that's the last thing you want to do.”

Prowl pursed her lips, and then bent to scoop up his discarded plating. “Who's Nebs?”

He took the plates from her. “Just one of his models. A dancer. She usually goes by her stage name.” He guided her out of the dispenser area and toward his bedroom.

They lay down on his berth together. His plating lay in an organized pile at the foot of the berth.

Prowl lay snugged against him, her hands stroking over his bare chest.

They spoke occasionally, but otherwise simply enjoyed each other's company.

Sunstreaker suddenly joined them, not even waiting for them to make room for him as he lay next to his brother.

His lover and his brother rested their heads against him and he shuttered his optics in bliss.

Primus, it was good to be home again.