Cum When They Do
This has been a great technique for me. I download porn videos- usually ones where the a guy shoots his load or cums in some way. I unzip my pants and rub my clit as he's getting his dick sucked or having sex, and I do this until he cums. Then a rewind and watch it again, and wait 'til he cums, and then I let myself cum as he is. It is incredible, and I usually can barely keep my eyes open as I am having an orgasm.