Cinch 2.5 Friendship Games (Patreon)

Imagining she enters CHS as a 1.0 from Cadance's influence.  But even then she's still very stuck up.

The games take place as normal first but get gradually more and more sexual.

Cinch's competitive ego changes her further as well during every game, and finally at last putting her at the same height as Celestia and tits filling up with silicone to keep up.