A person somebody heterosexual would have gay sex with simply because (1)they're famous or because (2)they adore them.
(1) "Man, I would totally fame-flame Channing Tatum. He's a household name, might boost me up in popularity."
-- Person 1.
(2) "Ohmigod, I love Aziz Ansari's jokes so much!!! I might have a girlfriend, but I would fame-flame the fuck out of him!!!!!"
-- Person 2.