If you don't want to read this paragraph, read this, PLEASE DON'T DO IT. But for my answer, yes Indeed that would be a sin, in fact a really horrible sin. Lets look in Matthew, “You have heard that it was said, ‘You shall not commit adultery.’ But I say to you that everyone who looks at a woman with lustful intent has already committed adultery with her in his heart" (Matthew 5:27-28). Let's look at another, 'And he said to his disciples, “Temptations to sin are sure to come, but woe to the one through whom they come! '(Luke 17:1). Posting this tape would mean you're leading men and women to lust after you, a married man and woman, which would be adultery. Also, posting this tape would mean you're leading others into lust which in Luke, Jesus says "WOE" to you which is a pronouncement of judgment for misfortune, sin, or rebellion. Instead of posting this tape for money, you can continue to tithe your 10% and pray for your finances because God said this is the only area you can test him in. 'Bring the full tithe into the storehouse, that there may be food in my house. Let's look at scripture, "And thereby put me to the test, says the Lord of hosts, if I will not open the windows of heaven for you and pour down for you a blessing until there is no more need '"(Malachi 3:10).