How does self vicissitude even work? Can a Tzimische just shapeshift, or do they have to get in front of a mirror and just start pulling around on their flesh by hand?

maki has roast beef that hangs off the side of her leg
nazifag, on the other hand, has an absurdly tight pussy, she can't even fit her finger in there, sometimes when she pisses it gets stuck in her urethral hole and the piss droplets randomly drip out all day