It's such a small thing, the way Granby pulls Sirius back against him, yet it looms large enough that for a moment Sirius feels scattered and unmanned, emotion tight in his throat and legs unsteady. The motion isn't designed to get at any one specific part of him, not cock nor mouth nor tongue, but rather to pull in all of him, that smooth, intimate rocking of their bodies together, and Sirius Black, who began this seduction and expected it to happen by rote, doesn't know what the fuck to do with that.

Just a moment ago, he'd been the one in charge here.

His head lolls instinctively back against the solid slope of Granby's shoulder, but he's not settled there more than a moment before something in him balks, violently, and he's broken away again to turn and surge forward, crushing their mouths together instead.