We were separated for abt 4 weeks after I broke up with her, got back again about two weeks ago and it’s been going good since then.

During those 4 weeks I cold approached someone on campus, this girl is IMO easily the hottest girl I know atm (fit late-20s med student), first noticed her 2 yrs ago and she wouldn’t even look at me so I ignored her. Eventually though she started giving me IOIs and as soon as I was single again I chatted her up on campus, didn’t exchange any contact info though.

I casually mentioned this to LTR couple days ago, she told me she knows that girl through a mutual friend (who knows I fuck good and loves gossip, prob relayed that info to the other chick). Got extremely jealous, called her a disgusting whore etc.

Yesterday at work I texted her I want to fuck you while that other girl watches and then make you two kiss each other for me. She laughed it off and said nah that’s disgusting. Today though when we had sex she started dirty talking very enthusiastically about that same scenario, towards the end she literally just kept saying she wants me to fuck that girl . We talked about it afterwards and she was still down for a threesome or just me fucking the other girl, said it’s hot to have other girls see how good her man’s dick is.

Question: how do I navigate this? Do I try to get a regular 1on1 date with the other girl (who might know I’m in a LTR again) and only bring up my LTR once we’re already fucking? Do I try to make my LTR tell the gossipy friend about her fantasy? Or do I play with open cards and ask if she’s down for threesome?

Attempt to answer own Q: I don’t know, my best answer is just don’t try it altogether and be happy with LTR. But literally even 2 years ago I thought this chick was hot as fuck so I don’t really want to pass on this opportunity