"Oi, is that any way to greet your beloved Padfoot?" Sirius barked a laugh and poked the belly that appeared from underneath the sheets. "And when did you get green eyes and gain so much weight?" Sirius was still labouring under the belief that this was his best friend, James.
Because really, other than the eyes and the weight, Harry looked like his father's doppelganger. The slightest differences were, in Sirius's mind, attributed to the wonky island they were stuck on and of course the fog that every morning filled his head with.