SDMU-624 Amateur friends male-female cooperation game! Win prize money if you make your girlfriend cum 5 times in 10 minutes! If not, have sex immediately

4 pairs of male and female friends who talked to each other in the city challenge female friends to go 5 times within a time limit of 10 minutes! Immediate sex on the spot if you fail! At first, it was for the money, but after getting cheated over and over again, the girls started to feel better... The boys got lusty when they saw their girlfriend panting... Shame, reason, and friendship! The true nature of the blown away men and women is here! !