I'm looking for a yaoi manga about a guy (middle-aged and I think he was an office worker) who goes to a sex toy shop. He bumps into someone there (I think he was a sex worker of some sort). He might've recommenses the middle-ages office worker some toys for newbies.

Middle-aged guy went and got toys because, in his previous relationship, he was too boring and that made him insecure.

Sex worker teaches him things.

Sorry I don't remember too much