If u can convince a female in less than 5 minutes then she is ur mom.
If u can convince a female in 15 minutes then she is ur sister.
If u can convince a female in 30 minutes then she is ur daughter.
If u can convince a female in 1 hour then she is ur girl friend.
If u can convince a female in 3 hour then she is ur lover.
And ultimately
If u can't or don't even get a chance to convince a female then she is ur wife...!!!