Femboy attracted to me as a man. But I also want him to top me

Hello 👋 gender fluid masc woman here. I met a beautiful, sexy, bewitching femboy who I have the hots for, and they're attracted to me too, but mainly as a man. I tried talking about it with them very briefly, and because they're really nice and all, they said they would love to pleasure me. But the thing is, I would actually like them to be top with me sometimes too, you know? I want to be wanted and desired as a woman (as well as a man). But I'm not sure if talking about it again would really help, because they're not gender fluid, just bisexual — they have a clear sense of when they would be a top (with straight women) and when they would be a bottom (with mascs like me). It’s still very new, so do you think he’ll be more comfortable with switching after we’ve been with each other a couple of times or do you think it’s a conversation i should have right away? Help!