Little girl and her dog

Ok, now there's this little girl who wants to take her dog on walk, so she goes and asks her mom.

"Mommy, can I take Buttercup on a walk?"

Her mother said "No hunny, Buttercups in heat,"

so the the little girl goes and asks her dad, "Daddy, I wanna take Buttercup on a walk but Mommy says I can't cause' she's in heat."

Well the little girls dad said, "Oh well I can fix that."

The little girls dad took a lil gasoline and rubbed it on the dogs crotch, "Now that fixes that problem, so go take Buttercup on a walk baby girl."

About 20 minutes later the little girl walks back in the door and has no dog. Her father asks "Hunny, where's Buttercup?"

"Oh she ran out of gas about 3 blocks ago...but don't worry, the neighborhood dogs are pushing her home!"