we have never really thought about it but we do around every 2-3 times that we have sex. have you been with youre s/o long?
it might be that you are just really in tune or the fact that as you get turned on more this may turn youre partner on more till you are both at the same level. hope it makes sence, lol.

just wondering, do u do the tantric sex thing?? it's fun hey