I like doing collaborative fantasy stories. 

Here's a starter story. (This is the Single mother version)

The hot single mom jogging alone, her fat mom butt jiggling and bouncing up and down, she stops to take a drink. The string holding up her pants has came undone and as she’s standing there taking a drink her pants fall to the ground, the hottie is now standing there with her big meaty cellulite covered ass hanging out, her little Victoria secret thong barely covering her babymaker, her lips oozing out the sides. She spills her drink on her big breasts in shock and panic, she bends over to pull up her track pants, exposing her virgin tight anus to anyone behind her, she grabs her pants and lifts them up, then she realizes that the string is missing. What the?! Where is the string? I don’t see it anywhere. She says, standing there holding her pants up with her right hand. Oh no! My boobs are showing through my top! Why did I wear white. As she’s panicking to herself, she is completely unaware of the horny creature stalking her.

Please feel free to write in the comments and add the next part, I want to see what you do with/as the creature and what your creature looks like. Then I'll write the follow up part and we can keep the story going or end it with one final part.