@Burt R. the Pony Guy
 
Not implying Twi is physically fit, but push-ups get increasingly hard the more you do in a row

Twilight isn’t an athlete here. We know she isn’t doing a very good job at exercising. Look how much she’s straining.

Twiggie chasing those gains.
 
Wouldn’t push-ups essentially be squats for a quadruped?

So basically they’re doing the opposite thing. Dash is lazy, Twi is working out. Can’t wait to see Applejack in a dress doing girly things and Rarity being in the mud

Well that didn’t take long

Even a baby knows how to draw teeth…

In before the brony babies and G4 purists start their usual bitching and moaning.  
Seriously, it’s a fucking war zone on the last image

why is her teeth like that

So she is going to replace Rainbow as an athlete?

Twilot is an athlete in this world