I'll explain who's who in the video above.
See this link first:
Bearded model lying on the stretcher is the being sucked.
Young guy in grey tshirt is sucking the model.
There is always a third hand touching the guys. Yusuf wears long sleeved tshirt and his hand and fingers are ugly (compared to Mehmet's). Mehmet wears short sleeved tshirt and his hands are better looking. These two guys switch between holding the camera and making weird contacts on the nude guys.

Teaser video has some scenes not used in this clip.
Who is the guy in the red boxers? He seems a bit too hairy to be Emre.