Who are these chicks?
1. At the start, there is a blond walking with Ms. Balbricker when one of them asks if she lost weight.
2. The guys are sitting at a table (outdoors) and a girl with dark hair brings them food/drinks. This is after they get shafted at Porky's and are discussing it, one of them commenting that the worst is that they are out "a hundred bucks."
3. The short girl when at the dance and the girls are swapped between a couple of the guys ('height proportion' mentioned).