Inran Hitozuma no Uwaki Nikki: "Mukashi no Sex Friend"

Mizuki loves her husband, she really does... But for her, good dick is a need, not a want, and he just can't seem to deliver. Fortunately, she has a way of fulfilling her desires, and as long as she's home to care for her sweetheart at the end of the day, what's the harm in a fling or two on the side?

(Source: Irodori Comics)