HUNTB-060 "Hey~ Big brother, you're getting hard in my sports bra (laughs)" Even after becoming a female student, my little sister still hasn't graduated from wearing sports bras. She plays with my erect penis and I can't help but ejaculate a huge load!

I don't think much of seeing my little sister's body, but one day, I was surprised to see her in a sports bra! I mocked her, saying, 'You're still not graduated from sports bras even though you're a high school girl!' But upon closer inspection, it was surprisingly erotic and I couldn't help but get an erection! My sister noticed and said, 'You're getting hard while saying that,' as she quickly approached! Moreover, she started playing with my erect penis, making me ejaculate in large amounts!!! Then she took my penis in her mouth with the face of an adult woman...