Before/After videos

Does anyone have a website for that before/after genre? (If there's a better name for this let me know.) Basically before is just your girl next door in ordinary clothes, and after would be them getting laid. I know there's a bunch out there but I'm having trouble finding a site that conclusively collects these kinds of things.

Bonus points if they're asian. I like to see that contrast between the "before" perfect little angel 4.0 GPA and the "after" with... you know.