The seduction of the wife next door, who always secretly criticizes me right next to my wife, reverse NTR esthetician

The Maihara family, who moved next to me, runs a beauty salon at home. Recently, I have severe stiff shoulders, so I had my wife undergone treatment... As soon as I learnt that I am an M during the treatment, Sei revealed his true self as a sadistic person, and despite his wife being by his side, he teases her to orgasm. Thinking it would be any worse than this, he tried to avoid interacting with her, but he couldn't resist the lustful techniques he invited her with his words and ejaculated many times. As she continues to cum, her body and mind gradually become drowned in her body...