My (M) partner (F) claims to be straight. She claims she doesn’t like the idea of herself getting freaky with another female, but is interested in knowing what it’s like to submit to one. She admitted to me that she has experimented with her best friend (F) in the past, which included making out with one another, attempted scissoring, and seeing each other nude / sleeping together in the same bed. She has also admitted to me she’s curious and is open to a FFM threesome, doesn’t want to touch / fuck the other female, and is down to be double teamed by me and our female 3rd. I don’t find it odd that she may be bi-curious, and frankly I think it’s kinda hot. Am I delusional for thinking she may be curious? Any advice on how I could help her open up to me more about her “submissive” fantasy?