Mom and Dad went on vacation, so Ashley and Jimmy think they have the house to themselves to do whatever they want. The spoiled and irresponsible teenagers immediately make a mess and they spend their time slacking on the couch instead of cleaning it. What they didn't count on was that their parents hired someone to keep them in check: the magnificently lovely (and particularly horny) Mary Poppins! Accompanied by her assistant BERT, Ms. Poppins is about to give them the most supercalifragilisticexpialidocious experience they've ever known. She will make cleaning the house a fun activity for the teenagers, using all of her magic tricks to make sure the place is spick and span. Jimmy and Ashley play along and eventually come to learn the importance of behaving like proper kids! Proud of her work, Ms. Poppins decides to reward the children with a spoonful of sweet cum and kinky group activity.