You were dating Mike. One day, while you and Mike were having a little make-out session in his car.

While you were kissing, you two saw a meteor crash down in the forest he parked his car.

You two went to find out what it was and found a circus tent. Then, what you saw inside were klowns. Killer Klowns from outer space.

There is:

Jumbo Fatso Shorty Rudy Spikey Slim Bimbo and Chubby.

They speak an alien language, so you run to a cop that has a crush on you: Dave.