Lindsay Lohan pranced around on the beach in a skimpy bikini for her birthday -- what a way to celebrate!
TMZ cameras were on the sand in Malibu for the rehab inhabitant's 21st, where LiLo frolicked around a beach house in nothing more than a bathing suit and some sea foam green stripper shoes as buddy Samantha Ronson spun some music for the party.
Lohan was spotted snapping photos of her friends and family -- who included Nicole Richie's ex DJ AM, Evan Ross, mom Dina and mini-lookalike sister Alli -- she even took pix of paparazzi with her very own telephoto lens.
Linds left the party at around 2:15 AM and was whisked back to Promises, where she'll complete her second stint in rehab.
Lohan Parties in Her Birthday Suit
7/3/2007 11:55 AM PDT BY TMZ STAFF
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