Ariel Winter shares photos from her 18th birthday party

LOS ANGELES, Feb. 4 (UPI) -- Ariel Winter shared photos from her glamorous 18th birthday party Wednesday.

The 18-year-old actress, who wore a Swarovski-covered Charbel Zoe leotard to her celebration, posted a picture of her grownup look on Instagram, writing, "birthday outfit."

Winter also shared a series of photobooth snapshots with boyfriend Laurent Claude Gaudette from the party. The couple have been dating for two years, and looked very much together despite Winter appearing to hint at a split in December.

The Modern Family star rang in her actual birthday, Jan. 28, on the set of the ABC sitcom with Sofia Vergara and other co-stars, and partied with over 300 friends and family members at a Moroccan-themed celebration the next day.

"We had Aladdin guys and belly dancer and we had a lot of really cool things. My cake was awesome!" she told E! News. "I'm Greek, so you gotta factor in family members, how many cousins I have, and stuff like that!" she added of her many guests.

Ariel Winter shared photos from her 18th birthday party Thursday. Photo by Ariel Winter/Instagram

Winter, who underwent a breast reduction in June, attended the SAG Awards on Saturday wearing a dress that showed scars from her surgery. She explained she didn't attempt to hide the scars because they "are a part of me and I'm not ashamed of them at all."

"I always find beauty in things that are odd and imperfect -- they are much more interesting," she later quoted Marc Jacobs before adding, "Embrace all that you are... Scars & everything. Your imperfections make you perfectly you. #loveyourself."

Winter is also known for voicing Gretchen on Disney Channel series Phineas and Ferb and the title character on Sofia the First. Modern Family also stars Julie Bowen, Ty Burrell and Jesse Tyler Ferguson, and airs Wednesdays at 9 p.m. ET.