"I love the sunshine," wrote Lindsay Lohan on Instagram. Credit: Brett Kaffee/Thibault Monnier, PacificCoastNews.com (2)

Sunshine, please! A healthier and happier-looking Lindsay Lohan flaunted her figure in a skimpy, one-piece bathing suit while hanging out poolside with friends on Thursday, Dec. 5.

The Mean Girls actress, 27, spent the day relaxing outdoors with her brother Michael Lohan Jr., 25, and pals. Wearing a black, patterned swimsuit with an intricate criss-cross pattern in the back, the red-headed actress also flashed some side boob in her tight one-piece.

Lohan posted a selfie of herself on Instagram around noon Thursday. "I love the sunshine," she wrote, beside an image of her in a black swimsuit with revealing cutouts. Though the star was indoors, she wore a pair of shades to display her excitement. Several hours later, Lohan posted a pic of her younger sibling and friends with the hashtag #werkitforartbasel. She also posed for multiple selfless outdoors and later joined the group to take a ride on jet-skis.

On Wednesday night, the actress was photographed partying with Kanye West and Kim Kardashian at LIV at Fontainebleau Miami Beach. She tweeted at the couple's Twitter handles on Thursday with the message, "sending love! #beautifulcouple." (Lohan, West and Kardashian are currently in Miami for the world-famous Art Basel show.)

Following her afternoon outdoors, Lohan sent a tweet in remembrance of Nelson Mandela, who passed away Thursday, as Us Weekly reported. "'A good head and a good heart are always a formidable combination' #RIPNelsonMandela," she wrote.