The 19-year-old actress attended the Vanity Fair and L'Oreal Paris Toast to Young Hollywood party in Los Angeles.
The beautiful starlet arrived at the star-studded gathering, held at West Hollywood's Delilah, wearing a cutaway bodysuit, while she wrapped a sheer skirt around her waist, leaving little to the imagination.
Winter posed in front of colorful balloons and added the balloon emoji as her caption.
A post shared by ARIEL WINTER (@arielwinter) on
The evening was in support of The Roar Foundation Shambala Preserve, which is an animal sanctuary that was established in 1972.
Campaign Hollywood is a series of events that take place the week before the Oscars to raise money and awareness for different charities.
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[H/T Instagram, arielwinter]