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 suddenly 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