Stimulation Issues

So my boyfriend and I are both Transgender men we still have everything we were born with and all that, vaginas and all. We are both 19.

When we have sex, I guess the best way to explain is how lesbians have sex, I have a hard time getting any sexual stimulation. I can't really get past being turned on, I don't get anywhere close to orgasm or peak.

I don't know what it is, and it's not that I have low sex drive or anything, I still want to have sex and it's usually him receiving because of my issue. It makes me feel like I'm broken or something and he feels bad because he wants to give as much as he gets but, I don't get stimulation.