Relationship Advice?

Elyshia
So me and boyfriend recently got together - around two weeks ago - and already he keeps mentioning his ex-girlfriend and what she used to do to him. I want to same something to him about it but I don't know if it's a bit too far and maybe I should just forget about it?
Also he wants us to have sex, I am still a virgin so I haven't really done anything that sexual but he has experience with having sex and doing stuff. I'm scared that I'm not going to be as good as he expects me to be and I don't want it to ruin our relationship. Could I have some advice on what I should for both situations? Thank you x