Pee Alcohol Wish

Little Johnny was walking down an alley and saw a lamp. After he rubbed it, a genie came out and said, "You have 10 seconds to have one wish." Little Johnny says he wants to pee alcohol. The genie grants his wish. He tells his family, and his sister doesn't believe it. After having a drink, she says, "We should have this every night!" Little Johnny gets two cups every night, one for him and his sister. He does the same thing for four nights. Eventually, he ran out of cups and has one left. He gives it to himself, and his sister asks, "Where's my cup?" Little Johnny replied, "You're drinking out of the bottle tonight."