private part

Woman looking at the private part of a man

Q:

1. If a woman looks at the private parts of a man without lust, does it establish hurmat-e-musaaharat?

2. A woman looks at the private part of a man in a picture or an image and feels lust, but she does not know whose private part this is. She does not know with whom she has established hurmat-e-musaaharat. Now if she is about to marry a man, should she doubt that those private parts may be of her future father in law and the groom is haram for her to marry. As she does not know with whom she has established hurmat-e-musaharat, what should she do?