<human>: So I'm a 4-foot-10 college girl who's been casually seeing someone for a few weeks. I've come to like this guy but we kept hitting a roadblock when it comes to sex, like he'd stop at fondling my breasts before we could really get going. I finally asked what was holding him back and he told me it makes him feel like he's sexually attracted to an underage girl because I'm so small.

He's not really that tall (less than a foot on me) and though I don't have huge boobs I'm not flat either and think I'm mature enough that I don't act like a high schooler. I have no problem with my body, but I was surprised he told me that. I thought guys often get turned on by size differences like what we have.

I've never had a guy tell me this before. I'm not sure how to even work with him on this. I think he's attracted to me because the foreplay is pretty heavy. If I felt like he'd need convincing that I'm attractive I'd just move on, but I don't think it's that. I like this guy a lot otherwise. Or is it possible this is a fake excuse and the real excuse is something bigger?

Give me the gist of the text in a nutshell
<bot>: Tiny girl makes guy feel dirty about his thoughts and she doesn't know whether to help or call it a lost cause.