Sinful Toys  (English, Paperback, unknown)

Tanaka thought he was going to spend an uneventful night at a decadent inn, but his peace is disturbed by a duo of full-figured foreigners! While he thinks he can just share a meal and a few drinks with them, Mariko and Sara are looking for more than just a morsel. As they share a hot tub, the heat of the bath rises and cultural barriers break once the two make their move on Tanaka as he enjoys the elegant landscape of the hot spring and the two beauties before him!