Bf: Do you love me?
Gf: Most of the time.
Bf: Well, it's either yes or no.
Gf:...
Bf: Well, when is it that you don't love me?
Gf: 2:30 to 4:00. Every time when you go to the river an hour, then it takes me a half hour to love you again.
Bf: Why?
Gf: 'Cause you always see that OTHER GIRL.
Bf: MY LOVE! That other girl is my sister!!!
Gf: Ohh...