Does my M(32) wife F(29) want an MFM threesome?

So quick story I told my wife I have a fetish or kink for a MFM threesome and she went along with the role play and hasn’t said no and mentioned we’d have to be in Vegas or something and then a few days later said we should go to Vegas. This happened in Feb.

We have done the role play of it, talking about the scenario in Vegas and kind of using it as dirty talk while we have sex. She has fully leaned into when we’re doing that. After I first brought it up to her she nervously/excitedly said “I’m scared 😂” when talking about it. She has never once shut down the idea but I just haven’t been able to gauge if she wants to or not.

One time while we were role playing the MFM, I talked about doing a double cream pie and she completely went silent almost as if she thought it was super hot and was processing it. I think she is being careful of what she says to protect me but I just want that validation so bad bc it’s so hot.

I just bought a dildo for her so we can simulate the mfm threesome. She didn’t want to use only the dildo without me (I just had a vasectomy and can’t have sex for a week). And she’s mentioned she wants me to be involved when role playing as she didn’t like when she was hypothetically alone with another guy.

Since she is down for the dildo threesome do you think she’s getting close or at least intrigued or turned on by the idea of actually doing it in real life?

Yesterday we just planned a Vegas trip for next month and I can feel some excited energy from her. This has been a slow build up since February. She has a promiscuous past but is very loyal to me. I’m hoping the promiscuous past will help my chances. Can any women or men validate that she wants to?