[Reducing Mosaic]DISM-018 "There's no way I could get excited watching AV," my sister said nonchalantly… and then she came into the bathroom while I was taking a shower, pretending to have made a mistake.

A brother reluctantly shows AV to his sister who tries to find reasons to watch it. While saying 'There's no way I'd get excited,' her breathing grows heavier, and the brother gets turned on by seeing her like this. An awkward atmosphere fills the room, and he leaves, but soon, unable to hold back any longer, the sister enters the bathroom where her brother is taking a bath just to see his dick. She presses her brother, who is confused, saying 'Let me touch it just a little...'