Maybe it could be Miss Martian since she can turn into both a man and a woman as far as I remember and if Gwen is curious she can feel some of the pleasures of women with the help of M'gann.
Hope you get better soon. As for the love interest given I’m inclined towards Zatanna. However you do you whomever you find having good chemistry with the mc and an easier time to write their interactions with is probably your best choice.