Sirius pulled Remus in even closer, wrapping his free arm around his lover's shoulders. "Now that," he whispered huskily, "we really don't have time for. But this…" He loosened his grip, dropping to his knees in front of Remus and running his tongue leisurely just around the head of Remus' cock. A few salty drops of pre-come beaded at the tip, which Sirius licked away with light, fluttery strokes of his tongue.

Remus groaned again as Sirius moved his mouth lower, gently laving each of Remus' balls in turn. His hands crept round to Remus' arse, lightly caressing. "I don't suppose…" Remus asked weakly, as any last shreds of inhibition dropped away from him.

"Yeah," said Sirius. He let go of Remus just long enough to retrieve a small vial of lube from his pocket. He squeezed a bit onto his fingertips, then dipped his fingers into the cleft of Remus' arse, drawing them teasingly against his puckered hole.

"Oh, Merlin," Remus laughed. "You brought lube to James' wedding?"

"Always be prepared," Sirius intoned solemnly, just before engulfing Remus' cock with the wet heat of his mouth.

Remus would have laughed again, but Sirius' fingers angled up just then against his prostate, and he gasped, bucking against Sirius' tirelessly coaxing mouth. He looked down at his lover. The blue-black hair was slightly mussed, the stormy eyes wide and teasing, watching him watching Sirius. Then Sirius dragged his teeth slightly along Remus' cock while doing something inexplicable with his tongue and angled his fingers against Remus' prostate just so -

"Fuck, Sirius," Remus gasped as he came, hard, in Sirius' mouth.