Pick a day to wear her panties all day. Once you grab a pair out of her drawer, that's your underwear :3
On the day you wear your girlfriend's panties, post another thread on here. Three people have to give you permission to change your underwear :3
If you can get permission before the next day, then you can change and hopefully sneak those panties back in her drawer.
If not, you have to change out of those panties in front of your girlfriend!
