When a female college classmate who I like to hang out with came to stay in my room, her underwear was way more erotic than I imagined! I couldn't help but get an erection because of the huge gap, and my female classmate started looking at me with a girly face that she doesn't usually show? My hidden feelings and sexual desire for me exploded! When she took off her clothes, I got excited by her sexy body and when I pistoned her hard, she looked even cuter and I came inside her many times! She was boyish on the outside, but on the inside she was a slut with high femininity, and I was more excited than ever!