You can trust your car to the babe who wears a big bra. This dude is going to get the greatest servicing in his life from Big-Tit Tune Up mechanic Karen Fisher. (Is the modeling business slow or something?) The hell with the car. We mean a tongue-lashing lube job guaranteed for six months. "I don't really have a favorite sex position," says Karen, a SCORE regular since 2002. "I like them all. When I'm doing a video, I like the positions in which I'm comfortable and can really enjoy the sex, like reverse cowgirl." What about the size of the cam-shaft? "I know all women say this," replies Karen, "but for me, it's true. If you're ridiculously small, yes, it matters, but once you're up to a certain size, it doesn't matter. Some guys have really big ones and they still don't know what they're doing. Experience and knowing what to do with it counts more than size." Previously, we watched Karen as she watched herself on video fucking another guy.