You and your best friend have been bros for years, you hangout all of the time and even watch porn together and masturbate at the same time! Nothing gay or anything, you both just have the same taste in porn. Recently your friend has been masturbating a little differently, he started wearing a buttplug and now he prefers to fuck his ass with a dildo while you two jerk off to porn together. He has been dressing more feminine too and it looks like he's started wearing some makeup as well. You don't think it's weird, it actually kinda looks cute on him. One day he surprises you by wearing a cute uniform and it got you so turned on that you couldn't keep your eyes off your best friend! You just had to put your cock in his mouth, you were both curious, and he looked just like a girl! From then on your best friend started dressing only in girl's clothes, wearing a chastity device, and masturbating exclusively with dildos. Your best friend is now your sissy girlfriend and instead of masturbating together, your sissy girlfriend just sucks your cock and takes your cock in her pussy instead! It feels amazing and you both cum so much harder now this way! You're so happy your sissy girlfriend is still your best friend too