[HUNTC-600] "I'll gently stroke you like this!" "Is this bad?" Isn't it going to come out?" "No way!" A serious study group turns into a sexy penis study session! 2

A serious study group turns into a sexy penis study session! But I'm the one at fault! I'm timid but have a high deviation score. Before the test, I always hold study sessions with my female classmates in my room and always teach them! But the girls who come to our place wear short skirts and are always defenseless, so they keep flashing their panties and getting exposed! If I watch something like that, I can't focus on studying and end up getting hard... I hurriedly tried to hide it, but it got caught, and just when I thought it would be creepy, girls curious about erect dicks started a penis study session... A thorough pursuit of the mysteries of a man's body that girls don't know about...