The girl of his first love, whose breasts and buttocks have gotten bigger at a class reunion after 15 years. Frustrated in married life, she shows off her panties and breasts to the guys, drawing them closer. A man and a woman leave the banquet hall, kiss in the hallway, and even touch each other in the bathroom when no one comes by and have sex. A man and a woman get excited after seeing a classmate having sex, and start having sex in the room next to the banquet hall. A man and a woman invite each other home to have sex because their husbands are on a business trip.