Jii Tousaku  

Kinky Masturbation, 自慰倒錯, Jii Tousaku: Koukishin, Jii Tousaku Koukishin, Jii Tousaku II: Hametsu e no Kairaku, Jii Tousaku II ~Hamestu e no Kairaku~, Jii Tousaku 2: Hametsu e no Kairaku

In TinkerBell's game, Saeko is introduced to an online sex shop by a coworker named Sayaka. She becomes curious about the products and orders herself a small vibrator. As she discovers the pleasures of using these toys, she becomes addicted to masturbation. Eventually, Sayaka joins her in exploring their sexual desires together. This leads to increasingly intense experiences for both women.