1: She squeezes her nipples herself and in a side view it shows you all the milk coming out. It then switches to a front view where a man takes over. He then sucks on her nipples and gets milk squirted all over his face.
2: She pulls on her nipples and then squirts milk all over a man's face and then on his dick.
3: Another man gets milk all over his face and then it's just a bunch of foreplay for the rest of the scene.
4: Foreplay, sex and more lactation.