Ready Player One
How we cite our quotes:
My avatar had a slightly smaller nose than me, and he was taller. And thinner. And more muscular. And he didn't have any teenage acne. (2.5)
These seem like minor changes to Wade, and maybe they are in a world full of Vulcans and cat people, but it still shows how the OASIS is a world where you can create your own appearance how you want it. Who needs Botox when you never leave your house?
Todd13 wore an expensive designer skin, probably purchased in some offworld mall. (2.15)
In a world where people are barely employed and gas is at a premium, some people still find the money to spend on modifications for their avatar. Does that seem a little, well, crazy to you?
I was overweight, and had been for as long as I could remember. (2.20)
Even though Wade doesn't have any real-life friends, or ever go outside, he's still self-conscious about his appearance. Maybe at this point he's subconsciously preparing himself for a shift to the real world, when he'll have less control over his physical appearance. And hey, he's gotta look good for Samantha.