When I was 20 (32 now) I hooked up with a trans woman and it went a bit further than I anticipated. She was late 30s and a bit thick/curvy. I told her up front that I was submissive, which she leaned into. She started by stripping me completely, putting me in my knees, and guiding my mouth to her cock... which was massive. Decently long, 7 in or so, but I could barely get my mouth around it. It felt so good in my mouth, I began sucking like my life depended on it. She picked up on how into it I was and started getting more aggressive; a tighter hold on my hair, thrusting roughly into my mouth, then throat, gagging me. I started moaning with each thrust into my mouth. I had never been used like this before and it was driving me crazy. She kept feeding off of that and started slapping me a