My sister was on top during sex and her boyfriend peed in her, is that normal? or is there something wrong with him? she is worried.

Sexuality: As described before this is a common occurrence during sex for both the female and the male. Some people actually choose this as part of their sexual activity. Other times it is not chosen but just happens. More often it is the female that releases urine since the pelvic pressure can be so great. It is absolutely nothing to panic or worry or even be bothered by.