According to
Average Penis Size Chart: how big is a big dick? | The Big Dick Guide, there are ten (yes, 10!) different classifications of penis sizes, both for length and girth..
Average length: 5.2 - 5.9 inches.
Average girth: 4.3 - 4.8 inches.
So on length, at 8”, you land in the
enormous category: 7.9 - 8.6 inch range. You beat the
average, above average, big and
huge categories!
In the girth department your 5.7 inch circumference gets you into the
big category of 5.3 - 5.8 circumference.
So congrats, you’ve hit the
bigly enormous combo!
But seriously, anyone sporting an 8” cock would get a “damn, that’s big!” response from most anybody who has seen or played with more than a few hard cocks.
Your superpower here (IMHO) is that you are still nicely thick without being scary. You can always hold back inserting that long beast all the way but there’s not much you can do about how wide you’re going to spread the intended hole.
That 5.7 girth will feel comfortably snug for most people with minimal issues. Just enough stretch to say “Yep, I have a thick one” without too much stress.
It will even be totally satisfying for many of us who like to play with the bigger toys.
So get out there and spread the joy, knowing that you have a great sized cock that can satisfy plenty of people.
Oh, and welcome to the site!