Everything interrupts when you hear the sounds of your dad getting home from work and you realize what problems may arise if he were to find a strange woman in his son's room.
So you scramble to get dressed and try to sneek out the window.. but all you have available are your own clothing and this pair of double D's won't fit in any of that!
Your sister's room is the next over, but her clothes you know wouldn't fit. That leaves mom's clothes....