Sadomasochist/vanilla relationship

Heyy people! So I recently got involved with a new man, and he says he’s a sadomasochist. I guess I’m considered vanilla because I don’t really have any kinks. I don’t mind him inflicting pain on me at all... like he chokes me, drips hot wax on me and even cut me. My problem is he wants me to do those things to him in return sometimes, it kinda makes me uncomfortable. Any advice on how to ease my way into pleasing him?