So here's the deal: your mom cannot find this.
She'll be sure to make up some sort of alternative reality whereby you did not buy it yourself. Or perhaps an alternative reality in which you did buy it, but only because you had not read any of it first. Should she glimpse you reading it, she will no doubt blame your raunchy wife's bad influence. The bottom line is it will hurt her very deeply to find this in your library. It's one thing if it's a column you read in Esquire and quite another to be caught anywhere in the vicinity of this compilation of five star, uncut, unfiltered filth.
To find herself in the position to start making all these excuses for you, she'll have to read some of it first, I hear you say. True enough, but this resolutely does not make things any better.
On the other hand, perhaps this little tome has come into your possession via your other half.
That can only be good news. Let's leave it there, I don't care to hear the rest...
P.S. I've cut a star because (due to a flight delay, I promise) I read it in one go. If you do, you'll see what I mean.