I am 21 year male, when my penis gets hard size is 5 inch,is it ok

If that's what you got, then yes it's okay.

Never measured myself because I always figured if I bang a slut, I don't care what she'll think and if I'm in a serious relationship, the girl will care more about me than just the size of my dick.

I don't know if your size is normal or not but either way I'd suggest you look at things similarly.

women like big ones , thats why they never scream fuck me with your tiny cock. But , plenty of tiny women wouldn't mind at all , in fact my first wife at virginity could just take four inches and the rest was wasted for years. you could also get with a jap. woman , they scream and whimper whine and cry even with a tiny jap. dick in porn.

I would like to suck on your dick

I would love to suck your 5 inch cock.

Some guys are huge some are average and some are small. Its not so much about the size as it is performace. If yiu can get it hard and make it cum or have some one make it cum then size really does not matter

Let me suck the fuckin thing and see....

mine is the same size, but i also have girth. I have been complimented in the past by girlfriends, so yes, your good!

Sure its okay. Are you circumcised?