The idea of wearing some kind of fetish clothing, or more general, just anything you don’t want someone else to see, by hiding it under some other clothing. Just imagine, wearing a catsuit and then covering it up with a long coat. This can go to some extreme lengths, which for me makes it better and better.
Janet's Stretching Marathon by Fokerz
Janet’s Stretching Marathon by Fokerz (Archive Link) One of my favourite stories by fokerz follows Janet masturbating with her giant sex-toy, using her chain of huge six rubber balls to stretch her genitals to her absolute limit. Pushing herself further, she eventually manages to pack all of them inside her womb, and with her horny mind taking over, decides to get dressed and even walk around a bit in public, the giant sex-toys inside her constantly stimulating her further.. ...