A man walked into the drug store and shyly asked the pretty girl behind the
counter if he could buy some condoms.  Seeing his discomfort, the girl decided
to have some fun.

She asked what size he needed.  He said he didn't really know.  So the girl
said they come in three sizes, and that there were three holes in the fence
outside that they used for sizing tests.  He should go outside and put his tool
to the test.

When he went outside, the girl sneaked around the fence.  When he put his tool
through the first hole, she caught him and gave him a handjob.

When he put his tool in the second hole, she gave him a blowjob.

When he put his tool in the third hole, she had her pants down and she took him
inside herself.

When he was finished, the girl ran around the front.  He walked up and she
asked, "So, what size do you need?"

He answered, "I've decided not to buy any condoms; but I do want 8 feet of that
fence!