Unsure

So my husband and I have recently (within the last year) been digging into our kinkier side (October will be 1 year of marriage, 4 years total). Our relationship has grown tremendously ❤️ Lately we have discussed a FFM threesome. But it would mainly be me playing with a female and my husband watching and occasionally joining, but no intercourse with other female, at least not at first..We’ve joined dating sights, asked some of our bisexual friends for advice, etc. Well the more we discuss our boundaries, curiousity, fantasies, and wants from this experience the more we think we would like to make this a long term thing. Meaning, we want to build a relationship with a girl or couple that agrees to let the girls have their thing and be close friends 😂😉 and eventually could consider a 3-way(single female) relationship IF all goes well.. so my question is does this make me/us “poly-curious”?😂 We are new to these emotions and considerations and any advice would be appreciated!