Mycroft's hands came to Gregory's shoulders, feeling himself make a soft noise somewhere between a whimper and a growl as Gregory's hand brushed against his cock, making it flare once more. He breathed out as he gave another round of kisses, starting to pull them both back to the bed as Gregory voiced his wants.

And who was Mycroft to deny him?

"Yes, dear god, yes. Just let me - " His knees hit the bed, and he let himself go down, reaching up to curve his fingers around Gregory's hips, to pull him down on top of him.