Fay, Fox McCloud, Wolf O'Donnell, SMG4Verse's Mario and Kakariko Village are respectively from Nintendo's Star Fox, Mario and Ocarina of Time and this screenshot's taken from Valve's Garry's Mod.

Mario just came to hear any puppies inside Fay's preggo stomach, until one of them just kicked his head into the sky and she is like "Oops. Sorry!" Meanwhile, Fox is surprised about her becoming a mother in the future and Wolf feels embarrassed to see Mario fooling around enough to put himself into that situation. The question, now, is: Who is the father: Fox or Wolf?