I went to deliver something to my sister who attends an all-girls boarding school. Then, her friends started gathering one after another. Even if I wanted to escape, I couldn't get away and was dragged into the girls' dormitory. Then, surrounded by my sister's curious classmates eager to know about men, I was half-forcibly made to take off my clothes and had my body touched out of mere interest, causing me to get an erection! Seeing this, my sister's friends became aroused, revealing their lecherous nature and attacking me! What's more, even my sister came after my dick…
