DESCRIPTION
The succubus’s tail has a special function - it can extend several hundred feet to coil her target. The heart-shaped tip is often used to gag her sub, capable of inflating and deflating according to their mouth size.
She unclamps his pants and unsheaths his adorable boner. Once she has the mage completely immobilized, the succubus rides him while he moans into his gag. ~
——
I thought it would be neat if the club-shaped thing at the end of succubus tails would be used to gag their subs. :>