MIDA-090 Seeing the girlfriend who came for the sleepover, today's sex monster brother is fully erect again... "Please...! Calm down today..." The flustered sister, Izumi Momoka, secretly helps him out.

Film Introduction

Big brother, you're jerking off in your room again…
Yeah, this brother of mine… even I, his little sister, find him to be a sex monster.
Today we're having a sleepover with friends at our place and all… if they find out, I'm screwed!