[It is that moan that makes his mind snap back into place, his thoughts ring in his head with absolute clarity, but it is not enough-- his eyes snap open, wide with a mixture of horror and guilt as the reality of the situation crashes down on him, but it is still not enough to stop this, to stop his hips from thrusting up into his mouth a few more times before he's coming, too, with a gasp that sounds almost like a sob]