I was going to post something similar to this...
Im basically in the same boat, older lady, identified as lesbian...
Except we haven't done the sex part until a couple days ago, and she was the one doing it.
We took it slow &I fully came out to her after the fact.
I stopped her in the middle, I told her I would stop her if she did something wrong. And she did at first, but that's not why I stopped her.
She did a great job of making me feel like a guy though.
In the beginning, I told her the binder was never coming off.
Why, because I never wanted her sujecting my body as a female's. Esp that part of my body, the lower part im more ok with.
And so far I've kept to that, but I've also started becoming more comfortable with her &opening up.
Which scares me cause I start to think maybe it'll be okay to take it off, but then I remind myself once I let her see that side of me there's no turning back.
She's tried touching my chest, and I hate it, but at least I feel ok cause I have my binder on.
You opened up to her, &she took advantage. She treated you as a female &that's a big no no. She obviously doesn't understand that you are a guy &your body needs to be treated like one.
Im pretty sure she sees you as a woman, which is why she's with you.
So either have a serious talk with her, inform her about your trans status &what you like/don't like when it comes to sex, and if she won't respect you/your body &try not to make you feel uncomfortable then you should look for someone else.
I had the girl im seeing read some stuff on trans after we did stuff lol after. I had been telling her that I've been really needing to tell her something really important about me but I just couldn't find the words to say it. Then she got it out of me &we talked and she read. And she said but this doesn't answer what I want to know, how do you guys have sex. And I answered that's more of a personal thing of what each person likes &their level of dysphoria. So I just talked to her about it, so far things are good.
But don't be sad,
*hugs*
If she can't accept you for who &what you are, then she doesn't deserve to have you.
You let go with her, and she didn't treat you right, she disrespected you.
You should let her know.