[F4M] Help with Livestream Lewd Donation Ideas

Well, I'm doing a roleplay with a guy I like, he's a dragon (M) and I'm a deer (F). The plot is that he is the owner of a rural house that I have rented since I am a student and he is the owner. Later I discover that the dragon has a nice cock and an even more impressive set of balls and I convince him to do a live stream with me.

I need creative suggestions for the donations, and i have to obey all of them.