The female classmates, who look innocent but are actually slutty girls, are competing over the number of guys they've slept with. After school, I overheard them getting excited about the recent guys they've been with, so I teased them by saying, "I don't get excited by girls like you." This made them angry, and they blatantly tried to seduce me, but I didn't get an erection. Then, a proud girl said, "I'll definitely make you get an erection," and forcedfully took my penis deep into her mouth, unexpectedly performing self-fellatio. Unable to hold back, I ended up ejaculating deep into her throat...