So your friend has her boyfriend's (or husband's) new girlfriend and he wants to borrow your friend's new dildo but is too scared to try it because it's not used on a real girl. So in order to save your friend from embarrassment you hide the vibrator inside some old, worn out, but still functioning vibrator that you have lying around. After your friend gets a whiff of the vibrator while fingering her new boyfriend, she will be compelled to try her new hand job on her man - And guess what?.