Anal😧help??😬

Basically I’m 15 n I slept with this guy about 2 and a half weeks ago and we have spoken occasionally a few times since then but I recently told him I’m visiting his area again in 2 weeks (we live 2 hrs away) and he asked to sleep with me again and I said yes. ( I’ve low-key got feelings for him and actually rlly like him)but he was like let’s try anal this time😬I said I would think about it. I’m very scared it’s going to b painful . And ik for a fact he won’t even have lube so I can just imagine the pain. I would have to buy the condom and lube but I just feel like I won’t enjoy it at all. But I rlly like him and want to keep him happy😅

Advice?????helppp????opinions???