Couple questions

1. Who's the guy with the bizarre teeth, who lectures a lot and plays the keyboard and likes to show off his naked legs? The one Jenny says: "He's not a preacher. He's not my boyfriend either" ?

2. The man who took off his "Pajama Tops"... How many was he wearing??

3. What are the three guys doing around the base of the dam, while the girls are driving the speedboat aimlessly around the lake? Checking for leaks? What?