The shame afterwards maybe part of the reason the fantasy is satisfying. You fantasize doing something you wouldn't (and in your case shouldn't because boundaries) do in real life. Have you thought of trying role playing another gal for your bf to make it more realistic but yet within boundaries? It might help you enjoy it more as well.
That said: fantasies and kinks are a wonderful part of sex and can keep your sex life more alive. Best to you.
Thank you for this 🙂 (this interaction was in person)
This is lazy on his behalf. Sorry OP.
The shame afterwards maybe part of the reason the fantasy is satisfying. You fantasize doing something you wouldn't (and in your case shouldn't because boundaries) do in real life. Have you thought of trying role playing another gal for your bf to make it more realistic but yet within boundaries? It might help you enjoy it more as well.
That said: fantasies and kinks are a wonderful part of sex and can keep your sex life more alive. Best to you.