There is no man on this planet who has never masturbated to his female friends! That is the true nature of men, and the truth of the world!! So, does that mean women do the same? To prove it, I had some friends, both male and female, play rock-paper-scissors on the street. Whether they win or lose, it's embarrassing, but the game of rock-paper-scissors creates a chemical reaction in their friendship! The woman gets wet, and the man gets hard!! This is the whole story of a male and female friend who have always wanted to have sex, and their instincts are fully opened when they have sex, which is even more exciting than with a lover.