venturous1 prompted me with Severus/Regulus: experiment, explosion, extraordinary.
Foolish Wand-Waving (PG; Severus/Regulus; 100 words): Glitter plus lube equals an excuse, not that wizards need one, of course.
When their experiment went pear-shaped, the explosion was extraordinary; it left the Potions classroom covered in irridescent goop.
"Oh. My. Gods. We're never going to be able to clean this up before tomorrow! Slug-"
Regulus kissed him quiet. "Severus, we're wizards. We have wands."
"That's not the wand you'll need to-fuck."
Stroking Severus, Regulus said, "Sure, I could manage one before Sluggy-"
"Shite!" Severus leapt up from behind the table they'd used as a shield and looked frantically at the door. "Someone will have heard that!"
Regulus laughed. "I did set an Imperturbable, so let's get to the wand-waving, already."