While Alice and Bob are making out, they trip and fall, and a bystander thinks they're fighting.
Bob went to peep on Alice while she is in the sauna. However she is trapped. He inadvertently frees her and his intentions are viewed as heroic.
Gender Inverted: Alice trips and grabs at something to keep from hitting the ground. This happens to be Bob's pants, leaving him half-naked in front of Alice.
Subverted: The hero trips and falls on top of Alice, but Alice manages to sidestep him...
Double Subverted: ...Resulting in him hitting his head on the pavement. The disoriented Bob then gropes at some support to stand up. Thanks for the Mammary.
Parodied: Bob trips and falls, and grabs at something to keep from hitting the ground, which turns out to be someone's pants...Arnold's pants! And he likes it!
Zig Zagged: Bob trips and falls on Alice. Alice gets angry and pushes Bob off of her, but their belt buckles are stuck together, so when Bob rolls onto his back, he takes Alice with him, and next thing you know she's on top of him. As they are trying frantically to get free, and making lots of unintentionally sexual-looking movements, Bob's girlfriend Carol walks in on them. After explaining that it's not what it looks like and finally getting free, Alice runs out of the room, mortified. Meanwhile, Carol finds herself pretty turned on by the display and jumps Bob's bones right there.
Bob trips, but does not touch any girl at all as a result.