Scream of the Evil Genie is the 13th book in the Give Yourself Goosebumps series.
Plot[]
After coming home from school after a very tiring day, you take a cola can out of the refrigerator. Once opened, instead of Cola, a genie named Jenna, dressed like a punk rocker, pops out. She grants you three wishes, so long as they are not violent, involve the death or injury of someone else, or are menial household tasks. However, the wishes should be spoken very precisely...
Story A[]
You choose a wish from a list of suggestions (fame, money, or good looks), but something goes "wrong" with the wish. You then have to either find a way to deal with it yourself, or make another wish to cancel it out, but you don't know where Jenna is...
Story B[]
Before you can make your wish, your mother gets home. She embarrasses you, and you're so frustrated that you say you wish Jenna were your mother. Your wish comes true, and now you have to find a way to get your real mother back - but your brother and sister are also Jenna's children now, and can make their own wishes.