Respecting Female Teammates, Technical BJJ for Big Boys & Is Stretching Pointless?

How do you approach rolling with women as a BJJ guy? What is the right way to go about making friends with team mates of the opposite sex? How to keep it respectful and be a good training partner so everyone has a good time on the mat. If you are the biggest person at your academy how do you prepare for Jiu-Jitsu competition if you only have smaller training partners - do you need to seek out larger training partners from another gym? "Stretching is pointless" (for Jiu-Jitsu)- Josh Sau...