Looking for a specific story

[MikePenix50]

I saw this story maybe a year or two ago, but haven't seen it since. It's about a middle aged man who either teaches or has an email correspondence with a Latin girl. He reconnects with her after a few years and he lets her move in with him and his cold wife as either a student or maid. She ends up fucking him and eventually sets up where the wife discovers them having sex in the marital bed.

Can anyone point me to the title of the story possibly?