<human>: Summarize the given text in a few sentences.

My ex and I dated for about 6 months 2 years ago. We have since stayed friends. We're pretty close. Not best friends, but we hang out together somewhat frequently. 

Ex started dating current gf a few months ago. She often comes with ex whenever our group of friends hangs out. At first she was pretty chill. She knew we used to date, was cool with it, said she didn't care. But as we've gotten closer, she's gotten weirder. 

Anytime the three of us are together, she asks me and my ex really personal sexual questions. Or tries to compare notes with me. Shit like, "Did you know he really likes it when you [x]? Did y'all do that?" or "So did you two ever try [y] together?" 

For the record, everyone thinks it's weird. My ex and I will kind of laugh it off, and one of our friends has even been blunt enough to tell her straight to her face that that's way too personal of a question to ask someone. I've also asked my ex to speak to her and try and get her to cut it out. 

Well, she hasn't. She says it's not weird because we're "Eskimo sisters" (her words, not mine). I'm glad that she's chill with me, but I don't want her to be *that* chill, you know? I'm very private about my sex life, and I don't like having a drunk girl shout across the table asking me if my ex was as good at eating me out as he is with her. 

Is there any way to diplomatically get her to stop? I hate it, but I don't want to be rude.
<bot>: Ex's new GF is a bit too comfy asking about our previous sex life. I want her to cut it out.