That's Criss Strokes. Most people put him at about 7 inches. I think he's a little bigger, but he's so lean there's literally no fat pad, so it looks much bigger. Also the way his skin is pulled by his penis at the sides of his base gives the idea that his penis is huge. That, crossed with camera angles gives his penis the appearance of a much larger piece. His girth isn't too impressive. 5.5 at the max.
He was in one of my favourite porns on Brazzers once though, so he is pretty cool. 'But... but... but you're Billys mommmmm!' He's just saying that while some super, super, super hot milf is just sucking his dick in the bathroom. Classic.