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And the experience was clearly an intense one for Casper, who sported large black shades.
The Latina bombshell relied on his support at the premiere of What To Expect When You're Expecting.
Her role as a woman preparing to adopt a baby is a return to screen form for Jennifer, who has been kept busy juggling motherhood with music and American Idol.
At the romantic comedy's unveiling, the star smouldered in a billowing Grecian gown which plunged down to her waist.
And although 25-year old Casper's eyes were hidden behind his glasses, they were no doubt fixed on his lady's killer curves.
The film's all-star cast includes Matthew Morrison and Cameron Diaz, who also wowed cowds on the night