too much sex? sex addict?

Every time I hang out with my boyfriend I want to have sex with him, In a passionate way and sometimes just to be messed up! (Don't worry I use spermicide, condoms, and birth control with a side of PCOS) I don't know why but when we don't have sex I feel kinda bleh. I guess I'm needy... Any tips on how to be on top? I'm a bigger girl and I think if I can take over he'll feel better after sex the next day (from being sore, he's kinda skinny, Asian skinny) idk I just don't know what to do really