The female Virizion's from Nintendo's Pokemon Mystery Dungeon: Gates to Infinity and this screenshot's taken from Valve's Garry's Mod.

After many adventures to save the world of Pokemon Mystery Dungeon, Virizion decided to try something new, something to make herself more beautiful. She then decided to eat plenty of Golden Apples that supposed to enlarge any Pokemon's bellies. Looks like it works extremely, when it comes to her eating plenty of it. And so on, Virizion seems to enjoy this so much that she'd love to show off her newfound beauty for any male Pokemon to enjoy beholding.