You hear a hose-like sound and start to feel some moisture around your feet. Barely able to see around your massive udder, you spot the cause: a pool of white and black latex is forming beneath you, the udder apparently pouring the stuff out through its nipples.
Desperate to escape, you try to stand up, but the massive udder keeps you pinned. You try to move it, shifting it so you can have a chance at getting up, but have no luck. By now the udder's shrunk from how much milk it's lost, but it's still just big enough to hold you down and since you can't lift yourself up with your hands (not unless you want to plunge them into the cow-patterned latex puddle that now surrounds you) you have no choice but to sit and wait.
Eventually, as the udder stops leaking and returns to its "normal" size, you manage to lift yourself up and get away from that puddle. Miraculously enough, your shoes seem to have protected your feet, but without your pants there was nothing to protect anything else, meaning that from your ankles to your waist you're now dripping with white and black latex "milk". You can only cringe in anticipation of what might come next.