<human>: Two things right of the bat:

1. He has not cheated on me (and would probably never have the opportunity with this particular woman).

2. He thinks I am beautiful and tells me often.

When I'm in a relationship, I think it's healthy for both people to be able to appreciate the opposite sex. For example, I don't get upset if he mentions that such-and-such actress, random girl, or even an ex is hot. I do the same (I usually only really mention celebrities or people I don't know).

However, he keeps bringing up his friend's mom quite often. We've only been dating 2 months, and I've heard about it at least 8 times. He doesn't usually make long, detailed conversations on the topic. But if she gets brought up, he is quick to mention how hot she is, she's a MILF, that he'd "do her", how he's tried initiating it, etc.

It's beginning to make me super uncomfortable. I have very shitty body image anyway, and I'm constantly comparing myself to other women as it is. This is an issue I'm working on and is my problem, not his. But now I'm afraid to meet this woman. I will instantly feel horrible about myself.

I am going to talk to him about this, regardless of whether or not I'm over-reacting, at the very least to let him know this is how I feel. I don't want to tell him he can't think she's hot, just ask him to stop bringing it up to me all the time. But my question is, am I over-reacting and being super sensitive to this? Also, why does he feel the need to keep rubbing it in?

Can you condense the text into three sentences or less?
<bot>: SO constantly brings up how hot his friend's mom is. It's starting to bother me. Am I over-reacting by asking him to stop bringing it up?