初恋の爆乳友ママが やさしく性の手ほどきをしてくれる話

Yuuta and Ren have been best friends since grade school. In fact, Maki, Yuuta's mom, was a mother figure to Ren as he grew up. But now that he's an adult, those feelings have morphed into something else. And with Maki looking as young as beautiful as ever, Ren is finding it harder and harder not to make a move on her... (Source: Fakku!) Note: Released at Comiket 105