is this bad for my hair?

My hair is down to my ass, actually a little past. and it's pretty thick. when i shower, I put conditoner in my hair and I brush it through with a brush and let it soak for 5-10 minutes. Is it bad for my hair to brush it in the shower? since hair is more sensitive or whatever when wet. it seems to work really good on my hair. my hair is always 10x smoother and silky when I do this. but I know some things can SEEM good for your hair but are actually horrible for it.