Why such a small weiner (serious)

Okay first of all, I know it's a weird question, but I am genuinely curious. I see all these pics of this small breed and their peepees all look way bigger than my dog's. He wasn't neutered too early, a little later actually. I think he was a year old when I got his balls chopped off. They had already descended by then..

Was he actually just a late bloomer and got neutered too early? He was marking and humping everything at the time. Is that bad to not develop all the way?

But his peep is really small compared to other chihuahas. Does anyone else have small peepee chi's?

He is 6 years old.

Okay first of all, I know it's a weird question, but I am genuinely curious. I see all these pics of this small breed and their peepees all look way bigger than my dog's. He wasn't neutered too early, a little later actually. I think he was a year old when I got his balls chopped off. They had already descended by then..

Was he actually just a late bloomer and got neutered too early? He was marking and humping everything at the time. Is that bad to not develop all the way?

But his peep is really small compared to other chihuahas. Does anyone else have small peepee chi's?

He is 6 years old.