Sometimes, as is the case on Rainbow Dash here, a rubbery, inflated mare just wants to deflate a good bit, either due to wanting to relax, to fit into somewhere better, or in this case, to try and enjoy such huge sizes being gained all over again. For Dash, the third case is what she’s going for here, as she had recently deflated immensely to about nearly her original size and figure, even though she was still stuck so shiny and rubbery all over. And with herself soon nice, comfy and set in her own room along with an air tank, she’s going to be likely spending the night filling both her home and the night sky with both lewd rubbery swelling noises and moans of pure passion and bliss before it ends with her likely out-sizing her door, or even nearly filling the room with her height, bust, curves, tail and/or wings if she gets too into it before too long by the end of it all.~