Four pairs of male and female friends who met on the street challenge themselves to make their female friend orgasm five times within a 10-minute limit! If they fail, they have sex on the spot! Initially for money, but after countless orgasms, the girls can't help but feel good... The guys are aroused by the sight of their female friends' moans... Shame, reason, and friendship! All blown away, the true nature of the man and woman is revealed here!
