I don't think he wants to draw a wolf penis. Keep the pants. Werewolves aren't just wolves, they are humans who have transformed into a wolf. Realistically there still would be clothes on him. As far as the update, it's better, but you can go even darker on the pants.
Yeah, because my dog loves wearing pants. =P
I think
realistically, a werewolf would take his pants off. (lol at "realistic" werewolves.)
Besides, he doesn't need to draw wolf penis. He could just make it fluffy and/or dark down there. Most people wouldn't mind not seeing his modesty waggling around, even without the pants on.
I just think tight short shorts ruin the image of a deadly, crazed beast. And taking the shorts off would solve the problem of them not contrasting enough with the rest of him, too.
But of course, that's just my advice. It's Delicious' drawing, so he's obviously free to do whatever he feels is best! =)