From Ikaho to Edo, No. 9 from the book Elegant Erotic Mane'emon (Fūryū enshoku Mane'emon), vol. 1

The gait of her trotting horse has put a travelling beauty into the mood so she seduces the horse driver while waiting for a ferry; the enthusiastic attendant waives his fee and offers to take her two stops further to the Kumagaya embankment on the Arakawa River.