Where can my friend lose her virginity?

My friend ( a girl) wants to have sex with her girlfriend but they both live at home with very strict parents. Any date requires a chaperone until one of them can buy a house they can't go into any rooms without a parent. It's dumb and ridiculous and they are both 16 but that is besides the point. My friend has a dildo/vibrator and would like to be able to use it so somewhere private would be best. They've decided no bathrooms and nowhere that someone would see them. Neither have a car/ can drive. I have a car that can be borrowed but neither has a license.