Chikan hatsu taiken densha (1987)

This one’s got two slim Asian girls in their 20s with black hair and a 30s Asian guy with a mustache. They’re all getting up close and personal on what looks like a train or a bus. One of the girls has short hair, the other long, and they’re both pretty petite. The guy’s got some intimate contact with both of them, mostly close-up shots. The girl with long hair takes a shower at some point, which is a nice change of pace. The camera focuses on the oral and intimate parts, pretty standard close-up stuff.