when you hook up with a guy one night, in the morning you wake up before him but before you leave you put a pair of underwear on his bed. but the underwear is supposed to be two sizes smaller than you are so he thinks he got with a skinnier girl.
so if you wear size large underwear you would leave a size small.
i've never played this game but if I did I'd have to leave my real size because I don't think there's anything smaller than extra small.
Most Helpful Guy
I think that sounds like a stupid game that's a waste of money and effort.