Sun-Young asks her superior Ho-Jun to train her in a Master-Slave BDSM dynamic. His first command is for her to wear a vibrator while walking around. His second command is for her to perform oral sex on him under a table. She keeps his ejaculate in her mouth for the remainder of the workday, which immensely satisfies him. He then rushes her home for an intense sexual encounter.
The more she tries to forget about it, the more Yumi ajumma thinks about Jaejun's cock, as though she wants more. Acting as if nothing happened, but Jaejun is not buying it, as if he can read her mind. Knowing her true intentions, he gropes her and gets her on the edge before ultimately stopping, letting her beg for it through her own volition.
Hwi-Hyeon bought the Original House of Yun-Gyeong & gave back the house to her. They are doing the deed in the living room. Yun-Gyeong is very active during the sex, Hwi-Hyeon is fucking her Rough & Hard.
Flashback: Hwi-Hyeon saw Yun-Gyeong having sex with her Husband when he was a Teenager. Both saw each other & it turned her on even more.