As far as my experience with women goes, from having sex with them, or talking to them. The Majority of women cannot last more then a few minutes on top as their muscles tend to get weak. The exception being with women who have had a lot of sex. The longer your girl lasts, the more sex shes had. Just a handy reminder.
this is dumb.
muscle strength has little to do with frequency of sex.
try exercise (ie. running, swimming, and weight machines)
when the girl is on top she uses her quads and hamstrings - which are quite easy to tone and are generally fit on most people.
& to try and give one peon reason for why women do not stay on top is just silly and misguided - the reason most girls may not stay on top may be due to many number of reasons, that could include:
while on top there is little to no pressure and friction being applied the clitoris (try using your fingers instead of lying like a stump)
the girl may feel self conscious about her body
personal preferences of dominance
also i have some friends who are unable to reach a climax on top, and receive little to no satisfaction having sex in that particular position
& lastly, maybe they just don't want to look at you
{edit: typo}
Edited by ilovepolkadots, 29 April 2011 - 06:11 AM.