MG-007 Friend female student swapping sex while begging for masturbation

"I've been having trouble with my boyfriend lately." "So when you're horny, do you still masturbate?" Only friends can talk about these things so openly. We show each other how we masturbate, and before we know it, we get excited, leaving our bewildered boyfriends aside, young people start having sex and showing off their masturbation. Soon, those who were masturbating start having sex, getting even more excited by seeing their friends' pleasurable expressions, and end up masturbating more intensely than during sex.