Sheila's from Activision's Spyro: Reignited Trilogy and this screenshot's taken from Valve's Garry's Mod.

This kangaroo lady enjoys waddling her big-bellied self around and now lays back on a tree to catch her breath. She wishes to welcome you guys to give her giant and bouncy stomach lots of rubs anytime you like to... and, I think Sheila's in a flirty mood, today, lol.