My daughter is 18..im 40..were not nudist or prudish..we dont duck into bedrooms...if we see each other naked so be it..i was walking into her room she was masturbatimg..legs spread and facing me..when she saw me she stopped..didnt cover up or freak..culdnt help nut look..is it ok for me to be her father and appreciate her as a woman

No father in his right mind would allow his daughter to see him naked, no father should see her father naked.
No father should just look at her daughter as she stops masturbating, so respecting father would post it on the internet...
No, it isn't normal, cover up and knock before entering any room in the house. It's called good manners.
Also work on your grammar. >_<
And it should be "Also, work on your grammar."
Also... it seems to me that she wanted to be noticed. I really doubt this encounter was accidental on her part.
although Mimex, you comment on the writer's grammar, but your own grammar sucks. see quoted below:
"no father should see her father naked."
"No father should just look at her daughter as she stops masturbating, so respecting father would post it on the internet..."
And keep away from evil thoughts. I don't think Ur daughter wants to do anything with U but U as her father shouldn't be thinking of stuff like that.
She also probably didn't cover up because she probably finds it normal for daddy to see her naked, in which U need to let her know it's not right!