Anne had known going into the game with Marcy that she didn't stand a chance, her brainy friend would school her no matter what universe's version of chess they played. That's why when they were jokingly betting on it she slipped in a punishment she was actually hoping for, having to like Marcy's feet clean. Anne had always been secretly fascinated by both of her friends feet but never had the courage to say anything about it, but when Marcy had complained a few minutes earlier about how bad her feet were getting as a Newtopian ranger, she saw her chance and took it. As expected she lost the match, and after pretending to gripe for a bit and balk at the task ahead of her, she sighed dramatically and motioned for Marcy to stick her feet out. She was a bit confused when Marcy smirked and told her to close her eyes first, but rolled with it. A moment later a puff of powder was blown into her face, and a panicking Anne got a brief glance of the room warping and growing before her vision went black. When she woke up she found herself in a field outside of a Newtopia, with a gigantic Marcy Wu flexing her feet inches away from her face!
"Sorry Anne, but I just couldn't resist using some Macro Mushroom spores to spice up this bet of ours! Look on the bright side, you'll be able to really get into the crevices now with your tongue!"
Anne could hardly believe her eyes, pinching herself to make sure she wasn't dreaming. After a moment of trepidation though, she approached the steaming soles of her giantess friend and slowly dragged her tongue across it. The taste of the grime and stale sweat was unlike anything she'd ever had, but despite the awful flavor she was soon excitedly lapping at Marcy's sole like a dog, too in bliss to even feel her former shame. Her enthusiasm wasn't lost on Marcy, but her friend just sprouted a knowing grin and let her continue in silence. After about an hour of pleasure for both girls, Marcy finally felt like she had to chime in.
"I know this is just for you losing that bet in flipwart, but I'm really feeling this! My feet get pretty sore and grimy exploring across Amphibia and defending the realm, and your little tongue is like a holy elixir for my aching soles! I still wouldn't normally ask this, but I've noticed how pumped you are about this as well Boonchuy, so whaddya say to making this a regular thing?"