Identify Help me find a doujin

[VJTony42069]

I'm looking for a doujin where a shota has sex with a milf, then he get his friends in on it but he starts to regret that. I think it ends with a flash forward with the kid now older, smoking a cig and talking with the milf.

Thanks in advance

 

[workofart]

Ponkotsu Damashii - Boku no Kanojo wa 40-sai no Hitozuma