Its normal that my hermafrodite girlfriend has a bigger dick than me?

I am weird guy. I like women and men. But I love my hermafrodite girlfriend. The first time we had "sex" i realized she had her Dick twice bigger than my Dick. Maybe you see this positive for me, but is not. She constantly say"the one who has the smaller Dick has to másturbate the other one" or "the one with the bigger Dick can penetrate the other one by the ass." We compare them and I always loose. I love her, i don't want to complain with her. I know my situation is weird but What can I do?