He scanned through, trying to pick out a target. He decided to pick someone random... "There! I have a feeling that's a good person to go for!"
He ran towards his new target, an adult who seemed to be in her twenties. From what Jeff could see, she was going towards a car, so he knew he had to be fast.
Running through the nearby people, he caught up to the woman. He slowed his pace, going right behind her, and ducked down under her dress. It was pretty dark under there, but he could still see, and went towards her underwear.
He made sure to keep up a good pace with her; Going too slow would result in getting left behind, but going too fast would mean getting ahead of her. He got himself up to where he was just below the underwear she was wearing, and saw what kind it was. A Diaper. "Huh, an adult wearing diapers. I wonder why that'd be..."
He didn't dwell on it for too long, and pulled it down slightly, giving him space, He grabbed onto the sides of her waist, and managed to pull himself up, his naked body getting up to the back.
Wrapping his legs around her, he pulled it back up, and dropped inside. He got himself buried in the bottom, getting a very close look at her awaiting asshole. He could feel each movement of her legs as she stopped, and as he suspected, she got into a car. "Good timing on my part!"