Jessica Lowndes Shows Off Sexy Bikini Body in Hawaii: Instagram Photos of 90210 Alum

Beach bum ??????????

A photo posted by Jessica Lowndes (@jessicalowndes) on Jan 9, 2015 at 7:17pm PST

Adrianna's heating up! Former 90210 star Jessica Lowndes is catching a tan — and attention — during her current getaway in sunny Hawaii. The actress has been sharing several photos of her sexy bikini body (and bum!) via Instagram this week.

Feeling refreshed ?????????? #nofilter

A photo posted by Jessica Lowndes (@jessicalowndes) on Jan 12, 2015 at 10:38pm PST

Her picture-perfect vacation began on Jan. 6, and has so far consisted of a boat excursion, poolside fun, and paddleboarding. "Making love to the sun #hawaii," she captioned a bikini selfie on Monday, Jan. 12. A few days earlier, the fresh-faced star also shared what appeared to be a topless pic. "Beach bum," she wrote.

Making love to the sun ?? #hawaii

A photo posted by Jessica Lowndes (@jessicalowndes) on Jan 11, 2015 at 10:40pm PST

After laying out near the ocean, Lowndes, 26, made her way to the pool. "Feeling refreshed #nofilter," she captioned. Adding in another: "Never want to leave. #heaven." In one particular shot, she rested on her stomach across a surfboard in the water, showing off her slim frame and derriere. "Magic," she wrote.

Never want to leave ?????????? #heaven

????????????????? Jessica Lowndes (@jessicalowndes) ????? ?.?. 12, 2015 at 11:05pm PST

In between eating healthy snacks like yogurt and lounging in her hotel bed, Lowndes also spent time with music producer Shawn Pimental, Teen Wolf's Arden Cho, and Saturday Night Live legend Jon Lovitz(!). "Laughing til your stomach hurts… The best!" she captioned a pic of the foursome.

Magic ?????????

A photo posted by Jessica Lowndes (@jessicalowndes) on Jan 13, 2015 at 7:14pm PST

Back in September 2013, the Vancouver, Canada native, best known for playing Adrianna Tate-Duncan on The CW's 90210 from 2008 to 2013, opened up about her workout regimen. "If I'm in L.A. and have time, I love going to the gym and I work with different trainers, so it's something I've just picked up. But a lot of the time I'm on location or living out of a suitcase, so I don't have time to go the gym. So basically all I do is sit-ups, push-ups, and jumping jacks (or star-jumps as you call them!), lunges and the plank, and you repeat it five times," she told Cosmopolitan UK magazine.

Laughing til your stomach hurts… The best! ???? @arden_cho @jonlovitz @shawnpimental

A photo posted by Jessica Lowndes (@jessicalowndes) on Jan 11, 2015 at 2:23am PST

"I live a healthy lifestyle and I crave healthy food," she added of her eating habits. "I love porridge, I have bizarre cravings for it. I love it with brown sugar and bananas, and I'm a huge fan of cinnamon — I put cinnamon on everything. I also have a sweet tooth and I don't like to deprive myself. I think everything in moderation is the key."

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