"J-j-ohn.. be c-careful.." He knew it was a silly warning, all he was doing was kneeling, but still there was a niggle of a worry in the back of his mind about John overexerting himself.

Even if he had wanted to stop John though, the moment his trousers and pants went down (helped by Sherlock rocking his hips back so his mate could pull them down) he knew he couln't and wouldn't have stopped him.

"Nnnng.. Jooohhhnnn." There was lust and want and NEED in that one elongated word.