Mycroft would have liked to say he had better control of himself than he did at that moment, but Gregory undid him the moment he wrapped his fingers around that tie and started to pull Mycroft atop him. He didn't protest, simply let his face flush, a noise rather like a moam groan low in his throat, and he shifted his position so he was more or less straddling the other man.

Long fingers started around to Gregory's front, to that solid chest so buttons, all the buttons, could be loosened, freed from buttonholes so he could return to where he was all that time ago. To bare skin on bare skin, while he let Gregory have his way with his mouth, taking only sweet revenge by sucking Gregory's tongue back inside of his own mouth anew.