The female Zangoose's from Nintendo's Pokemon Chamo-Chamo Pretty and this screenshot's taken from Valve's Garry's Mod.

She's been through lots of hard battles, even with her rival, Seviper, that she gets very thirsty enough to drink some water. While doing so, she was still thirsty that she continues, enough for her belly to bloat up very huge. Zangoose would have to figure out how to take advantage of her newly large size when she finished.