I've got ASIAN DOLLS UNCUT volume 1 where Teanna Kai has sex with 2 guys. Her first boy-girl scene was with Ed Powers. It was her first movie (under a different name I think)and apparently she thought she was doing a girl-girl scene and Ed forced her to do boy-girl with him. She has said that she felt like she was raped...
I think these are the only 2 boy-girl movies she has shot