As humans, we have an uncanny ability to "reason away" [sometimes] the
inappropriateness of a thing (this, that, or the other thing--any random thing one can think of or is faced with) until/unless we are willing to honestly examine its
adverse effects.
Paul said, in
1 Corinthians 10:23, ""
All things are lawful," but not all things are profitable; "All things are lawful," but not all edify."
And in
1 Corinthians 6, he said,
12 “
All things are lawful to me,” but not all things do profit. “All things are lawful to me,” but I will not be mastered by anything.
13 “Foods for the belly and the belly for foods,” but God will destroy both this and these. Now
the body is not for sexual immorality, but for the Lord, and the Lord for
the body.
14 And by His power God has both raised up the Lord, and will raise us out.
15 Do you not know that
your bodies are members of Christ? Having taken then the members of the Christ, shall I make
them members of a prostitute? Never may it be!
16 Or do you not know that the
one being joined to the prostitute is one body? For it says, “The two will become into one flesh.”
a 17 But the
one being joined to the Lord is one spirit.
Temple of the Holy Spirit
(Romans 12:1-8; 1 Corinthians 3:16-18)
18 Flee sexual immorality. Every sin, whatever if a man might do, is outside
the body, but the
one sinning sexually sins against
the own body.
19 Or do you not know that
your body is a temple of the Holy Spirit in you, whom you have from God?
And you are not your own,
20 for you were bought with a price. Therefore glorify God
in your body.
b
Aside from that, one could be either doing the "look on a woman
to lust after her" [even in still photos]
or not be doing that, the person themselves know whether they are or not, if they are honest with themselves (not to mention, God knowing one's heart); a way to tell (I would think) is whether they would indeed post similar photos of their own mother, great grandmother, etc, and view
those similarly... or not.
jmho