Pinkchyu has been one of my top pops for a while now. Her body is insane and she loves showing off her navel, which looks like the perfect place to jam a hose to start pumping.
It would probably take like half an hour to pump her up to her max. My degenerate math is simple- curvy women can hold more air since they have more space, and Pink is VERY curvy. In a similar vein, someone like Emiru (posted above in a Jynx cosplay) is also super hot but probably easier to pop since she’s so thin.
Regardless, Pink looks like she’d go off with a hard PAWP once her limit is surpassed, echoing through the house like a cannon just went off. You’ll probably have to deal with tinnitus afterwards while you sweep up those creamy white scraps, but my god would it be worth it.