Well, that was waking Sherlock up a bit.. in more ways than one.

"J'hnnnnn.." He sounded slightly more awake, but still not totally there yet. His body started to react as well to feeling John, and especially his arse, pressing up against Sherlock's cock. It started to firm up, putting a bit more pressure on John's thigh.

"Nnng..." He was trying to protest... slightly.. but his body was beginning to betray him.. and his desires.