You awake to find a delicate situation

The sun streams in through the windows, waking you up. You sit up and smile. The two girls are lying to your side. Shelly lies on her side with her big breasts hanging down. Katie lies on her back, with her little breasts sticking up pertly.

Little breasts? She's supposed to have large breasts! Did the changes wear off? Trying not to panic, you carefully slide out of the bed to avoid waking the girls. You find your pants and pull out the piece of paper that had the instructions for the collar. Skimming through it, you find one rule that says the collar has to stay on for 24 hours for the changes to become permanent. You keep scanning and find another rule that says that if the collar is removed before then, the effects will wear off in a few hours, all the wishes will be reversed, and the wearer won't remember anything after putting on the collar.

At least you have one lucky break. If she doesn't remember, then she might not freak out. On the other hand, she's in a strange room with a strange man and her girlfriend acting weird. She might freak.

Also, you can't just take the collar off Shelly and put it on Katie. Then you'd have the same problem with the other girl.

You need to figure a way out of this.