This happened when I was 15. My ex read FHM aloud to me.
And I was totally
grossed out cause I'm sure he watches porn. And he has pics of
beautiful women in his computer. (naked or not, I not sure. I only
seen the ones dressed.)
Somehow, I didn't feel jealous, I simply felt that he was a
sex-starved fella. Even now that we're good buddies, I still feel
its gross.
Such things have an impact on girls, especially around the age of
14-16.
Funny thing is, I think most girls don't look at pics of naked
beefy men. Porn maybe, but not as frequent as guys I'll bet.
Now I know why men are from mars and women from venus. 
