The first girlfriend I had as an amateur virgin. And finally, we have sex for the first time on a sleepover date! When I took off her clothes...I couldn't imagine seeing her slim and beautiful big breasts! Excited by my unexpected body, my sexual desire that I had been building up for many years exploded and my erection wouldn't stop no matter how many times I ejaculated...! The girl who I thought was pure is actually active in sex, and even though she is slender, her breasts are too soft... We had just started dating and had sex every chance we got from morning until night.