Complicated 🥴🥴

Hey guys... I just need a little advice. I know know the answer but I wanted to know what you all think... so long story short my cousin hooked me up with her cousin. Me and the guy were just cool but that’s it. We talked about how we don’t want anything right now and we’re cool sooo with my cousin always having people over this guy came and he’s started looking at me earlier that day at church and then at her house but that’s his god brother..... he’s attractive but 3 years young than me.... now I’m starting to look at him and wish I had talked to him. But now I feel like I can’t because me and his god brother had oral sex a drunk night...... smh I wish I had just given him the cha fr before even though I was scared of the age gap and him being a guy and immature.... help please . I wouldn’t go tell him I like him I’d wait until it happens but if he tries what do I do??