Four couples switch partners and start having sex in front of each other. They get excited watching their girlfriend sucking her husband's dick and inserting it into her wet pussy! They suck on a stranger's dick in front of their husbands and insert it into their hot, excited pussies! They can't stop feeling the excitement of shame and jealousy as they are spied on and watched while they have sex, and the hardness of the dick and the wetness of the pussy are so different.