Two childhood friends who are interested in me come to my room for some reason. Even though I have a girlfriend, my childhood friend who has a very high sex standard doesn't care about that and seduces me into naughty things! Alas, I suddenly got an erection right in front of me, and the slut girl and my childhood friend and classmate started having sex with each other, and the skinny girl said, ``Let's mix it in too!'' and intrudes into a threesome! genius of study