1 definition by ZooZoo Magee

"Jonascest," is the term used for fanfiction concerning members of the band, the Jonas Brothers, in homosexual relationships with each other.
As the members of the band are all brothers, these relationships are also incestuous.
The term, "Jonascest," comes from the combining of their last name, Jonas, with the word, "Incest."
The best Jonascest pairing is Joe/Nick. Though Joe/Kevin sometimes works. Better YET Joe/Nick/Kevin.
Further example-ness:
Joe kissed Nick roughly and pressed him against the cold shower tile. He couldn't wait for the hot, hardcore sex they would have later.
by ZooZoo Magee June 23, 2008
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