"Chair, you want to let him go? We barely handled him together!"
"I know, Desk. But next time his ass will be even bigger! I want to get stronger too. I want to be able to carry him alone next time!"
"Fine, but next time you better win, even if he gets obese!"
"Heh!"
"Heh!"
Upon re-reading that, it's uncomfortably close to being a weird transformation fetish story...