So, you requested for her to stop and I'm sure she'll comply, so what's the problem? In my opinion, the issue has already been resolved. I don't think it's safe to assume the OP's girlfriend is hung up on her ex per se, and I certainly don't think he should dump her over such a trivial matter. We really don't know the context in which she uses it or what happened beforehand to trigger her discussing it in the first place.

Instead of talking about an ex girlfriend, mention how one of your friends with benefits has a more delicious ******. See that goes over.

Take a hint and ditch her, or think of a possible 3-some?

NEWSFLASH: She still has feelings for her ex.....or her ex's penis.

Had a gf that did the same thing...she hadn't seen it in 24 years, but could describe it to a T!

Tell her that her ****** looks like an English bulldog slobbering

Better then telling her about your ex's vaginas, tell her how amazing their buttholes were.

Tell her to go hop back on her ex's penis if she likes it that much & that you will go back to pounding your ex's vaginas since it was less less less looser.

How do you start a convo. like that?? More importantly...how do you end it smoothly?

LUCKYYY!