This is probably one of the hottest stories I've ever read that doesn't even go into full penetrative sex. Never gets beyond oral and it's still hot as hell. That is one truly crowded elevator but it was a lot of fun how you had the pieces all work into place for that first accidental slip between the tits onwards. Really well constructed! That one girl who doesn't know he's groping her and getting off absolutely adds to the flavor of the thing, but for my mind the best description is when the mother is looking at him angrily, then the eye contact and realising she's even turned on by it. This here is a work of erotic art.
Oh, and the ending, nailed that too. Found the Japanese guy's iritated "smells like a whorehouse in here," line highly amusing, and then that final humiliated run away.
Really makes me wonder about those severe consquences!