Sating Sarah (The Mommy Porn Chronicles Book 1) - Ever Coming
This is what the author promises:
 
Warning: If you are under 18 this is NOT for you!!! If you are over 18 and are easily freaked out by masturbation, voyeurism, sex shops, married people having crazy hot sex, soaking wet panties and sexual tension that makes you want, no need to get your own bit of heat, then DO NOT read this book.
 
 

IT'S SHORT, 40 PAGES OR SO. LET'S SEE IF THE PROMISES ARE MET. I ONLY HAVE MY PHONE WITH ME, AND THIS IS ON THERE.