Q:

I was wondering if watching porn is abnormal? And is it illegal?

 

A:

Definitely accessing or possessing any child pornography is illegal.
Otherwise using pornography is an individual choice and it has become more and more common with the easy access of the internet. 

There are morality issues about the portrayal of violence as part of sexual gratification, the objectification of men and women as sexual tools to use rather than people to commit to, and the lack of realistic images of sexual acts and human anatomy. Viewing pornography sets up unrealistic expectations of what real relationships and bodies can be, so it is sometimes difficult to move from that fantasy world to the actual word of flesh and blood people.

~The Doc