Answer:
Make a list of the sexual things he likes, or has mentioned doing with you.
Make a second list of all the sexual things you like to do and want to do with him.
Ideas:
1. Suck his c**k
2. You don't wear panties for a week.
3. He sucks your p***y
4. 69
5. You shave him "down there."
6. He shaves you "down there."
7. Wear low cut tops
8. Don't wear a bra on dates
Get the idea?