DSOD-115 | Having an orgasm from an internal ejaculation while still on the phone with her fiancé, who is away for work. As he asks, "Wait, are you doing something?" she stifles her moans while being relentlessly thrust into—a continuous act of betrayal. — Hikaru Miyanishi

Hikaru, an office worker, is cheating on her long-distance fiancé, Kenichi, with her colleague, Takuya. One night, while she is in the midst of a sexual encounter, a call comes in from Kenichi—a connection triggered by a prank from Takuya. Though flustered, Hikaru tries to maintain her composure; yet, as she hears her fiancé’s gentle voice, the intense physical stimulation she’s receiving sweeps her away into a state of melting, overwhelming pleasure. "Mmm, so good... *gkh!*" While her fiancé talks about their future, her illicit, lustful lips struggle to stifle her moans. On the other end of the line, a thick cock thrusts deep into her, over and over. "I can't take it anymore... I'm coming!" She climaxes, gushing fluids. Driven to the brink of madness by the extreme thrill, she begins to transform into a pervert who can no longer engage in sex without being on the phone...