Tagged when balls are shrinking in size, usually quickly and beyond what is biologically possible. This tag is sometimes affiliated with gender transformation. A form of shrinking genitalia and shrinking.

In some cases, the balls can become small enough to retract into the body and disappear.

Not to be confused with:

• retracted balls, when balls pull up close to the body either due to the cold, an orgasm, an emotional/mental/physical state (e.g. fear), or some other reason within the realm of what is biologically possible.

Related tags:

• sequence
• transformation
• gender_transformation
• balls_expansion for the opposite case where existing balls become bigger.
• ball_growth for the opposite case where entirely new balls form.