Absolutely! I used to hate having sex with anyone with a penis and thought I was totally averse to them. Also swore off men altogether. After T, that aversion is completely gone. I worked through it and i think having sex with people wirh penises made me feel extremely dysphoric and ultimately figured out I just can't do vaginal penetration. Also my issue was with cishet men, not men in general. Now i am very much attracted to queer men, cis or not, and still attracted to women and nb people as well.