What age do most guys usually grow their penis?

I feel like I'm a late bloomer compared to most of my friends. Most I've friends dicks are almost full grown and can get erections and everything. They are all also taller and more muscular than me. I feel like a manlet twig when I'm next to them. My dick is barely a small little nub at this point and it does get erect at all. Am I just destined to be a dicklet? Should I maybe talk to my doctor about this?

Obligatory cute anime girl in the OP

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my flaccid penis size actually never grew but the erect size did

Uhh how old are you OP? If you are obeying the rules of this site right now I have bed news for you.

Possibly, I had a friend who didn't start puberty till 18 so it's not impossible.

Typically penises stop growing at age 15-16

I'm 18 (I turned 18 this year, I know I'm a zoomer faggot)

This is why I'm worried as fuck. Is there something seriously wrong with me? Why won't my fucking dick grow like everyone else? I'm fucking 5"5 scrawny dicklet. I'm fucked.

How large are you OP?

I'm 6 inches and I'd be willing to rate our penises together like real men do.

Sweet bro we're the same age! Usually people stop growing when puberty ends which is around your age. Same thing with height but of course there are discrepancies and they can have a growth spurt.

If you gotta ask....

Apparently in rare cases people have their puberty spurth at 18+ so don't be TOO concerned. I would still recommend going for a check-up though. You said you can't get an erection? That part concerns me unless I misinterpreted.