The popular doujin comic ``I became a sex friend with my friend's mother.'' has been made into a live-action film by Madonna's exclusive Rin Okae! - Shunta is secretly excited by the plump body of his friend Masaki's mother (Rin Okae). - One day, I happened to come across an e-mail address in a public restroom that said, ``Looking for naughty friends'' and contacted me... - As I continue to exchange erotic images with HN Ponko on a regular basis... - It was Masaki's mother who appeared at the agreed place. - There, she tells him of her secret lust...