MEN boasting about how long they last in the bedroom has always made others feel on the inadequate side.

But don't worry guys – they are probably lying.

The average time it takes a man to orgasm is just two to three minutes, according to sex researchers Masters and Johnson..

The bad news is that there is a bit of a difference between women and men.

When they're masterbating, it's almost the same – with men taking two minutes and women four minutes to climax.

But when it comes to foreplay and vaginal sex a woman takes between 10 and 20 minutes to climax while a man takes 7-14 minutes and typically ejaculates two to three minutes after entering the vagina.