Wal-Mart Greeter:

A very loud, unattractive, mean-acting woman walks
into Wal-Mart with her two kids in tow, screaming obscenities at them all the way through the entrance.

The Wal-Mart Greeter says, "Good morning and welcome
to Wal-Mart ....Nice children you've got there - are they twins?"

The ugly woman stops screaming long enough to say,
"Hell no they ain't, the oldest one, he's 9 and the younger
one, she's 7.

Why the hell would you think they're twins?........
Do you really think they look alike?"

"No", replies the greeter, "I just can't believe you got laid twice!"