The girl in my class known for being promiscuous came up to me and said, "If you're going to use a condom, I might as well have sex with you... Do you have the guts to do it here?" I was bewildered and exclaimed, "Huh!?" Having just entered a co-ed school this year after being all-girls last year, I was constantly exposed to upskirts and always fully aroused!! Seeing me like that, she spoke as if mocking me, so of course, I decided to do it!! But no matter how desperately I moved my hips, there was no reaction!! Frustrated, I removed the condom and... she turned into a super slutty girl begging for me to cum inside her.