Because, hurr, I'm a doofus.
So I scribbled out Sakura, and then immediately got stuck and spent at least ten minutes trying to figure out where I was going with this.
So of course, it turned into porn. Captions partially provided by Justin, and Osamu borrowed from Mina with permission to abuse.
Osamu: "So...tired....." X__X
Sakura: "Harder ~ ♥"
Osamu: "I don't think I can move anymore..." x___x;;;;
...I think Sakura broke him.
Poor Osamu...