 " MILF Island " brought in an average of 5 @.@ 7 million American viewers , performing similarly to previous episodes of the second season . This episode achieved a 2 @.@ 7 / 7 in the key 18 – 49 demographic ; the 2 @.@ 7 refers to 2 @.@ 7 % of all 18- to 49 @-@ year @-@ olds in the U.S. while the 7 refers to 7 % of all 18- to 49 @-@ year @-@ olds watching television at the time of the broadcast in the U.S. 
