Yamazaki Makie (3●-sai), Musume no Kareshi to Sex Friend ni Naru

One day, Makie Yamazaki (in her 30s) is introduced to her daughter's boyfriend. While a little dubious, she is pleased that her responsibilities as a mother will soon come to an end... However, while she may be a mother, she is also a woman, and thus, she has desires that need fulfilling.

So today, as per usual, she heads to her secret hookup spot for another fling. But who should be waiting for her there, than none other than... ???

(Source: DLsite)