While I can appreciate the effort that went into making this cartoon, I have a few problems with it
1) Believe it or not, penises actually don't look like that.
2)The breast physics in this loop need work as they do not actually move like that, however large.
3)This cartoon is a simple 3 frame animated loop that repeats, and looks rather gross
I admittedly have not seen the source material.
Having said that; you probably shouldnt be worried about anyone stealing your images or flash loops as this is quite bad, I'd recommend removing the watermark as to not have these materials eternally linked to you. Furthermore; your mother would be really proud of this animation and I totally recommend that you show it to her for critique on female anatomy.
Moreover; fuck you.
Your move newgrounds moderation team. ;)