I was a very happy man. My wonderful girlfriend and I had been dating for over a year, and so we decided to get married. There was only one little thing bothering me... It was her beautiful younger sister.
One day her 'little' sister called and asked me to come over to check the wedding invitations. She was alone when I arrived, and she whispered to me that she had feelings and desires for me that she couldn't overcome. She told me that she wanted me just once before I got married and committed my life to her sister.
She said, 'I'm going upstairs to my bedroom, and if you want one last wild fling, just come up and get me.'
Lord... And behold, my entire future family was standing outside, all clapping!
And the moral of this story is:
Always keep your condoms in your car.