The TOWIE star is the first-ever celebrity face of the brand's swimwear line and looks seriously smokin' hot in the glossy campaign images.
On Thursday night (28 May), she looked rather amazing as well, in a pretty floral printed dress that is perfect for summer. Love the look? You can snap up this frock from Jess' own collection with Lipstick Boutique for £65.
Jess met fans at the Ann Summers store at the Bullring shopping mall, where the Hotel Summers swimwear collection is now available.
"I'm so excited and flattered to be working with Ann Summers and to be their first ever celebrity face of swimwear - what a compliment! I've always been a huge fan of the brand and the collection is the perfect mix of glamour, sexiness and playfulness," she said.
"The different styles of bikini tops and bottoms mean there's a style to suit everyone - my favourite is the balconette 'Azelea' bikini, as it suits my shape and style - I felt like a Hollywood pin-up in it! I'm really looking forward to seeing the response to the campaign."
No doubt Jess will have a few pieces of the collection in her luggage this weekend as she heads off to Marbella with the rest of the TOWIE cast.
They will be filming scenes for the ITVBe show's new series in the Spanish holiday resort and, according to Jess, it's bound to be rather fun for us viewers!
She tweeted: "Have got THE busiest week then off to marbs this wknd for what I can guarantee will be hilarious & absolute madness from start 2 finish."
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