I try to last so that we both cum at or near the same time, however, if I cum first, I try to keep on going since it usually is a turn on for the other. It know it is for me when they cum first. If I have to stop, or I have to let up due to the intensity of the orgasm, I try to continue as soon as I possibly can. It is only fair!

I try not to thrust harder and deeper, as I would normally do in regular sex, since it might be uncomfortble for the other.