Any Friends With Benefits Tips?

So I just started my first friends with benefits relationship. What are the rules of this kind of partnership?

I love having sex with the guy but I also want to flourish in the friendship aspect. Is that possible? Or will it look like I’m looking for a romantic relationship. (I’m not btw)

He told me he would be my lover and friend so...I’m taking that to heart I guess.

UPDATE

I decided to end the relationship after my second night with him lol. I found myself wishing he were my boyfriend and sensed that good things were not in store for me. He said that he still wants to be my friend though which is cool. Thanks for all your advice ladies! ❤️