Nicely done, but I would never want to be in her stockings (she has no shoes)… She is not going to have a good time, unless this is some kind of very twisted AU :/
I have no idea, given that it was a fic I did not read, but I was told that she was having a very consensual good time, or I'd not have drawn for it. And she is wearing shoes, you just can't see them except for one ankle strap.