Small penis

So..I've known this guy since 2 grade ( I'm 23) and we've never had sex. He took me to prom and everything..never did it. One summer I was home from college and we ALMOST did it until I reached down and he wasnt hard and TOLD me to give him head. I was so turned off I told him I changed my mind. We've recently started speaking again and he randomly said one day that he was having a conversation with someone and mentioned that he had a hard time getting hard that day (not only was he not hard but it was small) So recently I've been considering having sex with him. For a few reasons..1 I'm horny as hell haven't had sex in a while, 2 what if it is small but he knows what to do with it. 3 I'm curious. He text me last night to come over but I just hate having disappointing sex and I'm gonna be so mad if I'm disappointed lol. I can tell he really likes me and he admitted he was wrong for telling me to give him head. So should I do it?