The female Venusaur's from Nintendo's Pokemon and this screenshot's taken from Valve's Garry's Mod.

This Venusaur just had such a wonderful feast of Golden Apples and other kinds of fruits that even the Grass type would often enjoy eating and ended up getting her belly so bloated and stuffed huge that she would often walk on her back legs. In other words, being bipedal. Now, it looks like she's feeling flirty enough to welcome you dudes to give her belly any rubs, kisses and hugs, if you like to. I'm sure she would enjoy them, mates.