HUNTA-531+ My sister's friend is a super slut, she was cummed so hard that she convulsed! My brother is a sex monster. My brother's libido is too strong, and I'm worried about his future... Every day from morning to night, I masturbate whenever I have time! I have a daily habit of masturbating at least 10 times a day, and when I wake up in the morning, my penis is naturally hard, so I will masturbate once when I wake up...