Everything is clear - he tricked her into sex, but who really filmed it? He obviously filmed it with a different camera than the one he had in his hands! A hidden camera does not give this angle and quality of shooting! So the cameraman in the room with a professional camera and a camera in his hands just a farce.
It seems this Russian girl doesn't give a shit who she sucks her daddy's dick or her brother's dick. Her pussy's always wet. Here too, she didn't let her brother rest - she went right into his panties. But for such a charming face and chiseled figure, all can be forgiven her. I can see that her ass is being used, but I won't say anything about it. Frankly, I respect those sisters who give in kind.
What's with the effects?