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Nothing like sisterly love!

Samantha Ronson came out to show her support for sister Charlotte at her I Heart Ronson holiday party last night, and although the DJ wasn't nearly as dressed up as her sister, we can't get over how much these two look alike!

Held at The Bungalow in Santa Monica, the party was packed with guests, and we would be willing to bet Sam Ro spun a few tunes!

Something tells us Lindsay Lohan wasn't on the list!