Living Underwear

The set of seemingly normal underwear (a black bra, black panties and pair of black thigh highs), which, once put on, can't be removed by normal means, and comes with some additional, more interesting effects...

Acquiring the Living Underwear
The set may be acquired in one of the two ways, depending on wether female partners sanctum is turned on, or not:
 * Marin: If female partners shrine is enabled, the set may be obtained by passing her first challenge. The price depends on the quest's results, with default price being 1000 ; she would raise the price to 1200 if annoyed too much, and lower it to 800  if Lust Doll pass the quest ideally.
 * Dalvie: If female partners sanctum was disabled, the underwear set can be bought from Dalvie directly. They would give the underwear itself for free, but would demand 1000 for the flute (which is required to control them) when Lust Doll returns later.

How to use the Living Underwear
One or more items must be equipped first. Once equipped, they can't be removed the normal way.

Once one or more items from the set are equipped the Flute may be used from the inventory to set their status. The following commands may be given:
 * Excite them. Activates the living underwear; while in this state, they would automatically produce lust at random intervals.
 * Calm them. Deactivates the living underwear; it remains dormant, but still can't be removed the normal way. In this state, the underwear looks identically to the normal Black Bra (Upper Undies slot), Black Panties (Lower Undies slot) and Black Thigh Highs (Lower Undies slot).
 * Remove them. Removes the living underwear, putting it back into inventory. It's the only way to get rid of them.

Plot role

 * Full set of magic underwear is mandatory for Marin's first challenge.
 * When visiting the Gallery, if Lust Doll accidentally destroys one of the art objects and agrees to pose for the rest of the day instead of being fined, it would be acknowledged what it's not possible to remove the underwear, so they would pose in it. The overall scene is mostly the same, however.