Lovely set-up, very believable, but hasn't really delivered much in the way of actual exhibitionism or eroticism as yet. I've given it a five on trust that the payback for the slow start will begin to show in the 2nd instalment.
I love to write erotica rather than graphic details. The situation is everything to me and as a wise man once told me, there are only so many ways of inserting tab A into slot B If you're looking for a money shot, its probably better that you read something else