So, I am a virgin, and I recently got a new girlfriend recently. She is transgender and she also has a extensive history of sexual experiences.

She admittedly regrets every person she has had sex with, but it still intimidates me. I am the wielder of a 6-inchers, that she says it's the "perfect size" although she seemed once interested in a "well-endowed" guy before, which added to my distress.

Any tips for my first time?