What is gay acrotomophilia sex?

A sexual attraction to those with an amputation, the arousal by those individuals who are missing body parts.

Definition

This refers to the sexual arousal, attraction to individuals who are missing a limb, not for those who wish to lose a limb.  There are many groups dedicated to this Paraphilia.

Most find that the loss of a single limb is preferred over multiple limb losses. In addition, the loss that garners the most desire, or attraction is the loss of a leg, versus an arm or hand.