I'm writing on this forum because I figure I cant be the only woman in the world with this weird occurence.

Although this has never happened during intercourse, when I am masturbating and bring myself close to orgasm instead of cumming, on a few occassions I have had urine come out, and more than just a drop--sometimes a a good amount.

Does this have to do with vaginal muscles being too weak? Has this ever happened to anyone before? If so, why??