Kankou Ryokou ~ Otto no Mae de Tanin Bou o Kuwaeru Hounyuu Bus Guide Tsuma Misaki

A bus guide is attacked by several members of a rugby club. And this feast of lust is witnessed by the bus driver, her husband...!
A mature and sexy female guide is toyed with by young men!
Attack in a public bath, fellatio through a paper screen, etc., full of very rare yet erotic situations.

Story
Yoku as a driver, Misaki as a tour guide, the couple accompanies a famous university rugby team for the trip to celebrate their winning.
His wife's large breasts are too seductive for the young lustful men, and their sexual harassment become more and more bold. It reveals the woman's true nature, and the man's fetish.
She thought she should do it for her husband who has become impotent.

[From DLsite English]