The first time my girlfriend took me to my room, I had a strong impression of Momo - my lover's lewd best friend who looked very seductive, especially when she came closer and asked me to kiss her. At that moment I realized I loved her! That night after we finished drinking, my girlfriend fell asleep on the sofa, this was the most suitable time for Momo and I to make our vows. She asked me to prove that my feelings for her were completely genuine by not having sex with my girlfriend and also not masturbating within the next month. The main purpose was because Momo wanted me to be able to have sex with her more times after the month of separation ended, which was three days without my girlfriend.