As Rebecca gets into her car and goes i say hey where are we going my house said rebecca. So i wait with rebeccas huge ass on me for her to finally stop at her house. next thing i know i suddenly pass out i wake up on rebeccas bed with rebecca looming over me she suddenly got bigger hey rebecca how did u get bigger i said i used an enlarging ray now im 15 ft tall and my ass is huger now she grins wickedly do u want a trail run to see how big my ass got? next thing i know rebeccas huge ass was descending down upon me but suddenly she took off her pants and panties lets make this more interesting she said now she was completely sitting on me then i hear her muffled voice i could use a ass massage so get to work as u get to work u start to enjoy it more and more than rebecca got an idea she unties the strings then tapes me to her ass ahh much better she said those strings were really cutting into my thighs beacause of my new ass size and height oh did i mention my house grows whenever i grow? Then rebecca suddenly got a idea her sister came in the same size as rebecca u called me sis? she said take off ur pants and panties said rebecca were both about to have fun with alvin her sister grins oh the alvin? the one u have been telling me about so much? then her sister said by the way my names susan and prepare to have two asses on you now! ok said rebecca i get to sit on the top half u sit on the bottem half deal said susan so now i have two asses on me what should alvin do now?