How can i mention my man to finish inside without sounding crazy?

3 weeks ago we went camping and at night I got super drunk he did too but, he was so cotrolled of himself he didn't even seem like it. Well, we had sex 3 times that night and I have asked him to cum inside and he said he "did alittle bit" which was a lie he told me the next morning so I can be quiet. Whenever, we have sex he would pull out last secs and never warned me that he was about to cum it just happens so fast so he finishes on my boobs or around that area like am a toaster strudel.. Mabey it's my fantasy but, I think it's super hot and I mention to be on birth control because I want that to happen but, he says that it's bad for my body 🤦 what shall I do??