When I was a teen I was considered some sort of ugly duckling due to my looks and extra thin frame. I've always been the shortest among my mates and I lost my left eye when I was very young, which made my appearance get even less appealing, so I had to get used to the fact that I would never be physically attractive. I'm 5ft5 and I have a small penis, which I came to accept a long time ago. However, when I started rowing at university, I started gaining muscle due to the heavy training sessions. I never worked out because I wanted to look buffed, but because I wanted to win medals.
After some years running, rowing 10 miles/day, and working out at the rowing club gym (which I hated), people started commenting on how fit I was, which surprised me because my focus was never on my looks, but on my performance.
As far as penis size goes, as my wife has multiple orgasms even though my tool is small, made me more confident, so I, for one, couldn't care less if people know I have a small tool, a fact that I have never hidden from anyone. All my rowing mates had quite large penises, but they never laughed at my smallness, as a matter of fact.
Thus, I never really had to lie about either my height or my penis size, but I guess that the whole background scenario was plotting in my favour.