DVAJ-438: A Week My Sister-in-Law Trained My Premature Penis That Couldn't Last 5 Minutes — Daily Semen-Explosion Training Life | 川上奈々美

About this work

I was troubled because my premature ejaculation was so bad I couldn't satisfy my wife. One day my sister-in-law Nanami caught me training my penis with an onahole. After I explained the situation, Nanami agreed to help me overcome premature ejaculation. From then on, secretly from my wife's eyes, the days of training began — Nanami trained my penis with handjobs. Nanami got so enthusiastic about the training that things escalated to kissing and fellatio... and she even promised that if I could hold out for 15 minutes she'd let me put it in her pussy. Can I manage to hold out and get penetration? But if we have sex, it would be cheating... Ahh—I want to put my penis in my sister-in-law's pussy and cum all of it!!