"Huh!? Who's peeing...? Why is it so wet?" The first time I've ever seen an erect penis wet! Me, sharing a room with the student's younger sister... The room is small, but it feels pretty good~ HUNT-995

Although I slept in the same room as my sister, this time it was a wonderful experience! My sister's friends who came to visit were all cute but introverted female students! Seeing their developing breasts without bras and their often-showing underwear, they immediately got erections! It's almost unbelievable that introverted male students are so interested in erect penises! Then they discovered their own private parts were also incredibly wet and excited! Even without fully understanding why, they craved penetration, which was also okay!