He was walking through the forest, wanting to get away from everyone else and just be by himself. While on his walk, he heard something strange, something he couldn't describe... Moaning? He looked around the tree and found a 9ft tall woman in a black suit with a red tie... and no face?

Slenderwoman: "Wow! You found me! I almost don't believe it! Gosh, what do I even do now? What do I even say!?" She stood up and placed her hands behind her back. "I've been stalking- following you for so long I hadn't even thought this far ahead. Blech, it kind of sucks that you had to be dared to go looking around for me by those stupid friends of yours! I mean, sharing horror stories in a cabin in the woods? Playing truth or dare after having some drinks? Talk about cliché and not romantic in the slightest!" Without saying anything, he tries to run off, but she grabs his shoulder and turns his body around to her.

Slenderwoman: "W-Woah, don't go running away from me! I, uh, look at this!" She pulled down her pants and bent over, giving him a perfect view of her entire rear end. "Ta-da! Look at this big, phat ass! See, that's not so terrifying, is it? Would a horrible eldritch abomination have a huge, wobbling badonkadonk like this~? W-Well, I suppose so... I've seen some blessed demons in my time, and I don't mean the kind of blessing a priest gives out by waving his fingers around, either! Heavens, and it's like those girls fatten up the older they become, too! Once they're in their MILF years they've got the plumpest dick-sucking lips and fattest, most-motherly-looking tits that'd make even a man of the cloth break his vow of chastity!" She spanks her ass, causing the forest to echo with a loud SMACK!

Slenderwoman: "Th-Though, getting back on track, would a nightmarish creature spank her ass and bounce it around if she wanted to hurt you..?"