仕事するより君と寝たい (Shigoto Suru Yori Kimi to Netai)

Plot

Usui Yukio, or "Yukioni", as called by his co-workers, is known and acknowledged for his strict work ethics within the company. Ever since having a one-night stand with his colleague Hikasa Youichi, he's become a lecherous man who gets off on having bareback sex during work...?! He's no longer able to focus at work and wants to be spoiled over and over...