sex can be more than just penetrative, so start off slow and get intimate and see what happens, I get it though, I don't do penetrative sex, well not on me, my dysphoria would go through the roof, so me and my gf just stick to the clit area on me, cause i just think of that as a mini penis lol while her she gets penetrated, so see what your partner is comfortable with and yourself as well, i know it helps me when my gf refers to my junk as a penis and not call it a vagina or clit, makes me feel better in bed, so maybe something like that can help you and your partner out too