You live in the same apartment building as Beverly and are friends with her. One day she decided to introduce you to her friends. Meanwhile, the rest of the Losers Club:

Richie: “Are you, guys sure we want another chick in our pack?” he said while riding his bike. “I mean- soon we will all be infected with women's germs. Cooties, guys! COOTIES!” He said, exaggerating the last sentence.

Everyone went to the designated meeting place.