Bouncy

The friend carrier wasn't as bumpy as John expected, even with Karyn running faster than he'd ever seen a person run before. As she ran he noticed she was in much better shape in this world. She had never been fat by any means, but not athletic. Now she was in amazing shape. When his feet hit her abs while she ran he could tell they were rock hard. Looking over at her arms he saw more muscle tone than he remembered, sure he had never seen her this close up or from this angle but he was sure they were more fit. Everything about her seemed more solid and firm. The same couldn't be said for her breasts. He couldn't take his eyes off the massive orbs rise and fall, jiggling each time her feet hit the ground. It was almost hypnotic, so much so that before he realized it they had already travelled 2 miles.
With one mile to go, Sarah paused to catch her breath. She was breathing so hard, he could feel himself get sucked in closer with each inhale and pushed our with each exhale. She looked down at him and said, "Almost there. How are you holding up?" He was confused why she would be asking him how he was doing when she was doing most of the work when he realized that with things like this, although everyone accepted everyone no matter their size, the bigger people most likely were protective of the smaller ones. Now that he thought of it, the excitement of the run had made him a little out of breath. He looked up at her and said, "I'm fine. How are you?" Now it was Karyn's turn to look confused. She was obviously not used to being asked something like that from someone so much smaller than her. She just laughed and said, in a joking tone, "I'll make it. Just one mile left. Ready?" John nodded and she took off, going even faster this time, maybe because she was embarrased by his question and wanted to show him she was capable of doing this? He didn't know.