Gigi Hadid does not know how birthdays work -- instead of receiving gifts, she's giving them ... in the form of a hot new swimsuit photo shoot. Yes, it's a happy birthday ... for us all!
Hadid celebrated her 20th on Thursday by posing for a bunch of photos in Miami and, thankfully ... changing into a bunch of colorful and revealing swimsuits in the process.
If every day could be just like Christmas Gigi's birthday ... what a wonderful world this would be.
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