I masturbate delightfully thinking about my current girlfriend’s best friend

My boyfriend is a very jealous woman who doesn’t let me have contact with any woman who isn’t her or my relatives. Because of this, it’s impossible for me to have material for masturbation by imagining perverted things with real women. Since watching porn isn’t my thing. For this reason, I usually think about my best friend when I masturbate, who once confessed how much she liked me. I love my girlfriend, but this doesn’t stop me from thinking about my best friend while I masturbate like a perverted freak. She has no idea about any of this, but recording and uploading it to the internet without showing my face really turns me on. I know that lots of gay men and women will see it and get turned on. This exposure gets me really hot, and I hope my girlfriend never finds out about this huge secret I’m hiding deep in my heart.