James is looking at him now with more than a hint of uncertainty. The expression is quickly replaced with a more favorable one as Remus rubs his palm across the head, gathering the moisture collected there, then moves further down to give him a firm stroke. James' erection is warm in his hand, and the man himself is practically mewling as he allows him to take over for him and slumps further into the cushions. Remus moans when next he feels James slide an arm under his own and across to give him an experimental pump in return.

James isn't as skilled at this as Sirius. He fumbles nervously, as if afraid to give a full stroke. The lack of callouses, of the hard, sure grip Remus is used to, makes it all the more surreal. But it's the utter wrongness of it that makes it so delicious. The knowledge that this isn't his boyfriend. That this is their best friend - a man whose only other experiences with men have come from the one they're both currently watching fuck his wife. There's just something about that that sets Remus' blood on fire.

He twists his wrist and delights in the moan he receives as James turns his head to press his open, panting mouth against the bone of Remus' shoulder through his shirt. The werewolf's heightened senses are momentarily scrambled by the wave of arousal that wafts off of him, and he spares a moment to lean in and leave a wet peck on his friend's forehead as he inhales the scent, before returning his attention to the other couple.

Sirius has lifted Lily's skirt to hold onto her bum as she continues to thrust up and down on his length. His rough hands map the smooth, ample flesh as if appraising it. His fingers trace the line between her cheeks, pulling them apart and pressing a pad to the puckered hole he finds there. She starts, gasping, then angles her hips back to urge him on. Sirius is all grins.

The Wolf flares in Remus' chest, and he swallows against the predatory growl that threatens to burst from his throat. Fuck, he's gonna wreck Sirius when they get home. He won't walk right for days. James had brought it up earlier, before they'd started - had asked if it was really okay, to be doing this only a few days before the full moon. This reaction inside of him now is the whole reason why Remus had insisted upon it.

Lily suddenly cries out. Remus thinks she can't possibly be coming again, but it almost doesn't matter. She looks so fucking beautiful like that: her head thrown back, pink lips parted on a moan, shuddering on his boyfriend's cock. James is trembling now as well, his free hand squeezing the life out of Remus' bicep, holding on tight so that he can thrust against him. His strokes on Remus' cock are frantic, and despite their general lack of skill, the werewolf can feel his balls begin to tighten, his orgasm building. He finds he can do nothing but whimper as he watches Sirius' face contort, his body stiffening.

It's at the exact moment they hear Sirius' own sudden gasp that James finally loses it, and Remus gladly follows.