Ecstacy.

That's what he was feeling right now if he was forced to give a name to it, sheer and utter ecstasy.

And it couldn't last much longer.

Greg breath was labored now, hips snapping against skin. He could hear the rushing of his blood in his ears, the sounds of Mycroft's pants. Someone was moaning, he wasn't sure if that was him, Mycroft or the both of them.

The tingling sensation began in his spine, sliding down towards his lower back and to his groin. The slow spread that had him almost mindless, chasing it relentlessly. It felt good, this all felt good but the promise of something better was on the horizon, something only Mycroft could give him.

Greg's hands gripped at Mycroft's hips, leaning forward and using his body to push Mycroft's legs back a bit more, his hips already snapping quicker.

Little more.

Little more.

There... there

The pleasure rushed down his spine to his cock and back to the base of his spine so fast Greg didn't have time to prepare, he thought he still had some time but, nope, there it was.

"Myc...Mycroft...Guh!"

With a shout, Greg came still thrusting into Mycroft. Hands left his hips flailing and slapping against the mattress until one came in contact with other fingers.
He mindlessly held on to that hand, still in the throes of his orgasm, as if Mycroft was the only one who could save him.