Arisa Tomioka, using obscene tongue techniques to seduce her unsatisfied wife who enjoys licking her father-in-law's penis. (KSBJ-285)

Arisa's husband is busy with work and rarely comes home, so the lack of sex has pushed her libido to its limit. One day, Arisa witnesses her father-in-law, with whom she lives, taking a nap with an erection. His penis, even larger than her husband's, compels her to swallow and thrust, crossing the line. Furthermore, Arisa, who desires a child, begs her father-in-law to help her get pregnant for her husband's sake…