So I found out that a coworker has an interest in me. We were flirting over text last night and she brought up the topic of sex. I'm a virgin, but I think she's had hetero sex. I'm FTM trans, but considering that I barely know this girl, she has no idea. (I'm not out at work, so I still present aa female though I do dress and kind of act masculine.)

She brought up the topic of "lesbian sex" which honestly made me cringe. I couldn't imagine that. I'm not okay with having sex as a "female" you know what I mean? If I had transitioned, or been born cis, I wouldnt be a virgin still lol. But I'm scared to tell her that I'm trans in fear that it will change her opinion of me.

A friend of mine said I should wait until we get more serious to tell her. So that she's more invested in me and less likely to break it off. But I dont want things to get too far without her knowing. What should I do?