The advantage of this video, in my opinion, is, above all, its obvious, I would even say, deliberate staging, if I may be allowed to express such an opinion. Otherwise, the activity depicted in the above video is clearly obscene, unacceptable, and sinful. This is my opinion of it.
I don't know why she had to tie her boyfriend up like that, what would he do if his hands were free? Would he have messed up the redhead's hair or prevented his boyfriend from getting his dick out of his pants? I'm sure he would have sat quietly with his hands free as well.