I couldn't resist the sight of my girlfriend's best friend's voluptuous J-cup breasts... The allure of her cleavage, the bouncy titjob that her small-breasted girlfriend can't do, and her breasts shaking and thrashing with every thrust. "Which boobs do you like better, hers or mine?" For the three days that she was away, I threw away my reason and forgot about her, letting my suppressed desire explode, burying myself in her big breasts, squeezing and licking them, and fucking her day after day, day after night, becoming addicted to immoral sex... A complete record of a once-in-a-lifetime forbidden experience.