>>92182000She has no holes and all her joints are sharp and pinchy, so the best she can do is jack you off with thick rubber gloves. Also she can't bathe and cleaning herself requires a full disassembly so she has to do it from behind you while standing and you have to use a condom.
As a bonus though she'll let you jerk off on the pile of broken old haunted bodyparts she's discarded so they have a harder time trying to escape the basement and kill you in your sleep, and also because she derives sexual gratification from the suffering of her enemies.