Premature Ejaculation, How Quick Is Too Quick?
Many men around the world ask themselves this question every time they have sex with their partners and feel an uncomfortable sensation of guilt after looking at her disappointment for the short sexual encounter they have just had, a situation that inevitable leads them to the sad conclusion that maybe they indeed are “too quick”.
Masters and Johnson have stated that a man ejaculates too quick...read on.
phinebooty

you answered in you post: if she loks disappointed then you know. i mean if you enter a woman and within 2 to 5mins you've cum, that's quick! especially if you hadn't made sure she's come as well thereby leaving her very very frustrated. think of other things like an ugly granny and see yourself last longer!