Female

This makes you a woman, a female body with female reproductive organs or gentitlia, if you prefer.

You can be a heterosexual (cis) or lesbian or any of the sexuality you want to tweak but with having a female body as a base.

Now, you have to describe your partner, Ash. Your girlfriend have dominion over you, but how does she do that?

Is she gentle and sweet, capable of charming you?

Is she rough and demanding, seducing you with her strength, physical or of character?

It depends on your imagination and that is what you have to describe next in your choices.