[Jim had anticipated coming into this room and leading (pushing) the boys through everything. He'd be the one kissing Sherlock until Sherlock begged for it, and the one pushing John and Sherlock at each other until they slowly fumbled through their self-denial. It had occurred to him that the two might become more proactive as the evening went on, but he hadn't anticipated this: held between the two of them, his body scoured with mouths and hands until his skin feels raw and exposed. Jim likes being surprised sometimes.]
[He twists eagerly toward Sherlock's nudging, kissing him back with matching tenacity. His earlobe and neck sting gloriously from the nips down his skin. With his arms pushed up, he reaches back and pulls Sherlock's mouth closer to his, fingers clutching the back of his neck.]
[John's deft hands on his trousers elicits a slight jump from Jim, and an excited, breathless little laugh against Sherlock's lips. Exposed now, Jim rocks his hips forward, slightly put off that John isn't giving him more attention for it. Nestled between their bodies as John and Sherlock kiss, Jim grabs John at the hem of his trousers and yanks, as though he could get him closer, grinding their hips and nipping at John's exposed neck.]
Page 6: Jim wants John to keep that up, which he does. Jim prepares him as Sherlock kisses his back. Jim tells John if he wants Jim's cock slick then he needs to prepare Jim himself, and John does and turns back to Sherlock. Jim moves into John who’s on top of Sherlock. With some more asphyxiation play, Sherlock passes out under Jim’s hand when he cums. Once John and Jim also cum, Jim curls up next to Sherlock for him to wake.
Page 7: Sherlock revives and kisses Jim. John curls on Sherlock’s other side. Cuddling and flirting ensue as Jim orders room service: coffee for himself and Sherlock asks for cigarettes. John argues about the cigs, but is falling asleep and Jim orders them anyway. Jim showers while they cuddle/sleep, and room service arrives. Jim’s mental schedule. Jim shares his black coffee with Sherlock, who wanted two sugars in his. Sherlock begins trying to dissect the situation and asks if Jim is going to lock them up. Thus begins Sherlock vs. Jim poker-face deduction-off, while everyone mentally tries to figure out what happened and what's going to happen. Jim kisses Sherlock and they start getting frisky as John has crazy dreams.
tl;dr - They have lots of safe sex with some rivalry, some cuddling, and some "wtf just happened." First making out against a table. Then John/Sherlock while Sherlock and Jim make out, then Sherlock goes down on Jim, then Jim/Sherlock while John goes down on Sherlock, then some cuddling, then Jim/John as Sherlock and John make out. Then Jim showers and gets ready to leave, John falls asleep and has nightmares, and Jim/Sherlock without waking John.