Not to restart the whole political discussion which doesn't belong here anyway but I thought you might like this excerpt from a poem that was posted on slate.  See link for complete poem.

[...]
French kiss? Man, there ain't no way,
We're kissin' for the U.S.A.!
(In fact, with limp-wrist circumflex,
Why don't we just get rid of sêx?)
[...]

Did the French really develop this style of kissing? Would be curious to learn its origin. Same with the other oral delights that we enjoy...

Here's a link to word origins.  
Not real helpful, but take a look at the entry just after "French Kiss" (:

http://www.wordorigins.org/wordorf.htm

The link below explains how the age old rivalry between France and England finds its expression in their respective idioms.  Essentially the Brits of old considered that type of kissing to be dirty and immoral and hence attributed it to the French.

I find it inconceivable that the French developed that type of kissing or the other oral delights we enjoy given that Greek and Roman civilizations came first (no pun intended).  Can you imagine a Roman orgy without French kissing or BBBJ?