You knew they were also locked when they asked to lock you up, but you had no idea they expected you to match the time they already had in their belt, and since she was Ace it wasn't difficult at all for her to last the 3 years she already had.
You always dreamed of a succubus materializing and then using you to her hearts delight, when one appeared you were ecstatic, however, that all changed when you realized she fed off your frustration and not the orgasms you thought you would have an endle