When I woke up, I was in a room I didn't recognize. It was a girl's room. My hands and feet were tied up somehow? "Good morning. Are you awake?" This girl is... "Mitsuki" who I met yesterday. I think we were drinking together and decided to go to her house. I don't remember anything after that... My girlfriend with a cute smile happily touches my body, which I can't move. She licks my nipples with her soft tongue, biting and stimulating them. She strokes my stiff penis hard and makes me want to cum, but she won't let me...