Rihanna Vs. Rita Ora: Who Rocked The Cleavage Better At The MTV Movie Awards???

Left: Rihanna seduces in Ulyana Sergeenko on the red carpet.
Right: Rita Ora fuses darling demure with titillating temptress.
Both fashionistas turned heads at the 2014 MTV Movie Awards, but we wanna know…
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[Image via AP Images.]