憧れの女上司と相部屋がきっかけで… 田舎の宿でこっそ～り何度も射精させられた僕 星宮一花 (2021)

This guy makes the luckiest mistake of his life when he books a single room and the sexy boss Ichika has to share a room with a group of coworkers. Ichika bangs the whole office roster, basically.