BDSM or abuse?

I saw this post on Facebook (shown below) and I just wanted to see what everyone else thinks of it. 
I'm ok with people that like so be submissive or dominant but there's a line... In my opinion, NO ONE should ever look like this after sex. A few bruises? Ok, that's fine. A lot of bruises so it looks like you've been thrown about? No. No way. 
Tell me what you think..