....the choice is also about frequency per night or one-shot
duration that u r talking about. to go for frequency, protein as
well as exercising do wonders.....but u must stop him from
masturbating.....if u r going for one long shot, them its about his
control mechanism....guys whom masturbate often will usually last
longer cos they get less sensitive to reach their orgasm though
they could be hard on...... otherwise, a simple conclusion is that
u two are not sexually compatible....Just kidding 
