Just as Alex was about to put the book back inside the backpack, he suddenly noticed a few of the pages were no longer blank.
Taking it out and checking it from the first page, his face immediately started to blush as he closed it back up.
"Why does Mom have this kind of stuff?" Alex thought to himself, unable to believe what he had just seen.
It was a hand-drawn picture of him having sex with his mom with an almost extremely detailed depiction of their bodies.
Soon, his brain couldn't help but check more of it as he flipped the book open again and went to the next page.
As he expected, it was another page of sex scene, with him having sex with Katherine from the back this time.
Rapidly flipping page after page, it was clear the book was just a flat-out adult book of him and Katherine having sex.
His heart started beating so fast that he closed the book and quickly shoved it back into the backpack.
