MUFR-002 - The day I crossed the line with a mere female friend. ~From a lighthearted prank, our friendship evolved into a friends-with-benefits relationship~

A close group of male and female friends. Kanon has a somewhat tomboyish personality, so she doesn't have many female friends and has often hung out with male friends since childhood. On a whim, they decided to go to a newly opened hotel nearby with three people. At the hotel, their mood became high, and they started a game where the loser of rock-paper-scissors would perform 'masturbation' as a penalty. A male friend started undressing and handling his penis in front of them, and Kanon, while initially amused, became increasingly interested in her male friend's masturbation. They were doing erotic things as friends, and somehow the atmosphere gradually shifted. Kanon, who usually acts cool, is so cute when she gets excited by a penis, that I started to feel a little serious. It wasn't intentional, but with just one moment of curiosity, we became a male-male-female relationship. When I visited her a few days later, she accidentally urinated in front of me, and I realized that friends can't always hold it in. We were playfully touching and playing with the wet area, and today we decided to have sex with all three of us again. After all, friendship between men and women doesn't exist. The day our friendship collapsed.