During the three days his girlfriend was away, he was continuously teased by her friend for two days, accumulating sexual desire until he ejaculated through breast sex on the last day. (Kunori Risa FSDSS-739)

My live-in girlfriend went back to her hometown for three days. To prevent me from having an affair, she asked her friend Airisa to keep an eye on her. Even though I knew I couldn't have an affair, I was still captivated by Airisa's ample G-cup breasts… "If you can hold back for these two days, we can have sex on the last day," she said. So I could only answer "yes," and she subjected me to a hellish experience of teasing me with her breasts… My goal was intercourse on the last day, so I held back from ejaculating. On the last day, it all came out. Semen kept overflowing, and I couldn't stop getting erections. Whether I was having an affair or not was irrelevant… I was only captivated by those G-cup breasts in front of me. I'm sorry to my girlfriend…