Mother in law

My wife believes I've traveled over to her moms house most days this past eleven months, to help her with renovating her home and garden. And she'd be right in part of that.
However during the two hours I say I'm there to help her mom, I'm actually there for around three hours and a good deal of the time I'm there, I'm fucking the shit out of the forty seven year old.
Cheryl is what you might call a very good looking extremely fit cougar. And not only is she in fabulous shape, she's also a crazy slut in the bedroom. She's far more inventive than her daughter and far more willing to accept the rough sex her daughter once indulged me with.
Other than absolute pain and scat, there is nothing of limits and I adore fucking her, licking and tonguing her pussy and ass, and ramming my cock down her very eager throat.
When my wife asks about the ongoing work, I tell her it's probably going to take a couple of years at least to get everything done. In reality it would probably take a few months. But we're in no rush to finish, as I get to indulge in the best sex of my life with a mother in law who is insatiable.