I'm currently seeing 2 women who are both leaving in 4-5 months and I have really different relationships with each one:

A: I met her while I was seeing another woman, then I started seeing her sexually afterwards. She was comfortable with me having just had sex with the other one. She has a bf back in her country (and I'm not gonna judge that) and is really hot, but mentally is not really bright, just a standard hot woman.

N: She's mentally the most attractive woman I have ever meet and she's also really cute and hot. I will not go into much detail, but we both had a crush on each other big time, then I fucked it up (talking to her while drunk) and now we both calm down and are more like fucking buddies. I actually think now it's better, since there's not so much pressure.

So they both know I am seeing other women. Do you have any advice about how to keep treating them? I'm specially concerned about if they get jealous (see below).

I talked to A and she wants to try to make out with another woman. She's also KINDA open to do more stuff, but doubting a lot. It's really bad seen where she's from so there's a lot of "social" (in her head) pressure.

I also talked to N and she's definitely open for a thresome with another woman as we talked about it openly. The thing is, last saturday she asked me where I was partying (as she MIGHT come with her friends to the same famous club), but I was just leaving that club with A and asked her if she wanted to join us. She was a bit cold saying that she'd stay with her friends instead (another small fuck up? she was really nice today so I'm not actually sure).

My plan is, take N with me one day we both have a lot of time, while we are together, text A, who has a LOT of spare time, to see if she's free. If she is, I introduce them both. N wants some time to meet her before any sexual move, so we'd go dinner and have some drinks near to A house. Then, if N is comfortable (A will probably be), we'll go to A's house, let them play and join them after a bit they of them making out. Any advice for my plan?? I know the risk is that some, or both, of them will stop seeing me, and I'm willing to take it thought I'd obviously prefer not to.

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I'm not English so I might make minor mistakes and make some sentences sound a little weird.

Threesomes usually work by having female recommended partners first. Get N and one of her friends (she already has comfort with them) to have a threesome with you first. Forget about A and this whole thing for a while. After you've done it with N and another chick a few times, try to incorporate A, if you really want to. Sometimes girls with threesomes have a "preferred" chick they like to have threesomes with, ask her about her past experiences with it and if there are any of her friends that would be down.