When nodes (control points) stretch in organic 3D modeling, it’s usually because the mesh’s edge flow doesn’t align with the object’s natural form or movement.
Organic modeling needs smooth edge loops to spread deformation evenly—if edges are unevenly spaced or topology is messy (e.g., triangles instead of quads), pulling nodes (like bending a limb or forming a smile) can’t distribute stress uniformly, leading to stretching. For example, poor edge flow around a mouth might stretch lips when adjusting nodes for an expression.
To fix it, use a “relax” tool on the stretched area or rework edge flow to follow the object’s curves. Start with simple shapes (like a sphere for a head) to practice clean topology first.