Invited to a hotel by a male friend from his club, a man takes his resting girlfriend to an after-party. However, upon discovering that their classmates are having affairs at the hotel, he is deeply shocked. Overcome with excitement, he suddenly grabs her body, exclaims, "I was so nervous, come on, it's okay, right?!", and starts sucking her nipples, then exposes his erect cock in front of everyone. "Look at me, I'm already this hard!" he shouts, and intense sex begins. Her pussy and anus are thoroughly examined as their relationship quickly descends into a lewd and depraved one-night affair. Meanwhile, a woman reunites with her former homeroom teacher, whom she once admired in school, and momentarily relives memories from 30 years ago. But in truth, the teacher has been desiring her. "I couldn't stop imagining you naked when I came to this room," he confesses, persistently caressing her. Though she protests, "I didn't invite you here to do something like this!", she eventually accepts his cock, surrendering to instinct as she grinds her hips and screams in ecstasy. The former class representative gradually loses all rationality under the sensual, experienced touch of her ex-teacher, giving in to an increasingly filthy affair. Two stories included.