We assume you already know about the Sports Illustrated Swimsuit Issue release yesterday. What you might not know is Kate Upton, Nina Agdal, and Co. have been celebrating the magazine’s release like crazypants. Last night, not only did they throw down at Crimson in New York City, they flew to Vegas to do it all over again at Pure. These selfless ladies really love giving us the goods; first their stunning appearance on Letterman and now these awesome Twitpics from the release parties. No one was without a Valentine’s last night.