Using obscene tongue techniques to seduce her father-in-law, a wife who enjoys licking his penis but is sexually frustrated. (KSBJ-329)

Her husband was always busy with work and rarely came home, so their sex life became lukewarm. One day, Hinako Mori witnessed her father-in-law, with whom she lived, having an erection while napping. Being an oral sex addict, and finding the sight of his penis—more appealing than her husband's—she couldn't resist licking it, crossing the line. Furthermore, Hinako, wanting a child, pleaded with her father-in-law on behalf of her husband to get pregnant…