Rihanna celebrated her birthday on Saturday night with boyfriend Matt Kemp, a few close friends ... and a little person who gives lap dances.
It all went down in Arizona ... during a weekend in which RiRi went barhopping in Scottsdale.
What more could a girl want?
UPDATE: The tiny dancer is "Bridget the Midget," a porn star who also appeared on "Cathouse."
Rihanna -- Lap Dance from Tiny Stripper
2/22/2010 1:11 PM PST BY TMZ STAFF
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