It's about spelling the words: All of the boys and all of the girls are begging to F U * K me... Am I the only one who has noticed this in Britney's song If you seek Amy...It's hard to remember of something like that in my language,but it's common in yours...
It's actually a fairly common juvenile joke in America. The band April Wine recorded a song called "If You See Kay" back in the 1980s. ("If you see Kay, tell her I miss her.") Lex