The mum-of-two married long-time boyfriend Eric Johnson earlier this month before jetting to Mexico for a romantic honeymoon at the Four Seasons Punta Mita Resort.
Jessica, 34, shared a sexy snap to Instagram today, showing herself stretched out on a sun lounger and holding a cocktail.
She added the caption: "Jessica Johnson." A hint that she's changing her name to take hubby Eric's surname? It definitely has a ring to it, doesn't it?!
While on honeymoon, the gorgeous star also celebrated her 34th birthday, marking the moment with a make-up free picture the night before.
"And the sun sets on 33," she wrote.
Jessica and former American footballer Eric, 34, married in Montecito, California on Saturday, 5 July, surrounded by friends and family including Jessica's sister Ashlee Simpson and friends Jessica Alba and Cacee Cobb.
The couple's children Maxwell, two, and Ace, one, were the guests of honour.
Jessica and Eric became engaged in November 2010 after being introduced through mutual friends. They previously set two wedding dates but had to postpone both after Jessica fell pregnant.
In a statement to People, the couple described their wedding day as the "happiest moment" of their lives, adding: "We are overwhelmed with complete happiness and love having made our eternal commitment. To say 'I do' in front of family, friends and, most importantly, our children has been the happiest moment of our lives."
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