Ariel Winter flashes major underboob in sexy graduation dress

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Ariel Winter Takes the E!Q in 42

Ariel Winter has been on a sexy style roll lately, and her latest look may be her most risqué yet.

The 18-year-old "Modern Family" star just graduated from high school last week, and she wore an incredibly revealing light pink dress to her graduation party that put her signature curves on display.

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In the snap, Winter is seen posing next to a dessert table with her hand on her hip and her newly-dyed, red locks look amazing. The true focus of the photo, though, is the insane amount of underboob that the young star put on display in the cut-out dress.

"I couldn't be luckier or more grateful," Winter wrote in her caption. "I was in awe last night and I still am that you guys love me that much to do all of that for me...I never would be where I am today without you two...you guys saved me and taught me to be the person I am today."

Couldn't be more grateful to @shanelle_gray & @davidbarrygray for throwing me the most amazing graduation party ever last night...the amount of love and support they've shown me for the past four years has been life changing. My sister is my absolute best friend and my everything...❤️ Thank you so much. I couldn't be luckier or more grateful. I was in awe last night and I still am that you guys love me that much to do all of that for me...I never would be where I am today without you two...you guys saved me and taught me to be the person I am today. Dad...I love you!!! Thank you for always being there to support and love me as well and always put a smile on my face no matter what :). I'm so grateful for the bond we now share. Alenah the song you put together with Shanelle and recorded for me was one of the most special gifts I've ever received. I'm still tearing up thinking about it. Thank you for that and for your beautiful, special performance. Also a big thank you so much to Geraldine for putting it all together and to @contemporarycatering @robpauerful for the most amazing food! A special thank you as well to Sharon who is probably the biggest reason I was able to get through high school and accepted into college...you pushed me to always do my best and encouraged me...not to mention you were always there for my 1am freak outs about late projects :) Anddddd thank you SO MUCH to all of my amazing family members and friends that flew in to celebrate with us- you guys are the absolute best. Thank you also to the ones who didn't have to fly in...so much love was felt all around last night. Thank you thank you thank you!!!!!! Class of 2016...❤️ #uclabound

A photo posted by ARIEL WINTER (@arielwinter) on

Calling out her father and sister for throwing the gorgeous party for her, Winter gushes about her family and the support they've given her through the years.

"Thank you SO MUCH to all of my amazing family members and friends that flew in to celebrate with us," she continued. "You guys are the absolute best. Thank you also to the ones who didn't have to fly in ... so much love was felt all around last night. Thank you."

Congrats to the graduate! She's be headed to UCLA in September.

See more photos of Ariel Winter through the years:

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Ariel Winter
LOS ANGELES, CA - MAY 02: Ariel Winter arrives at the ABC's 'Modern Family' ATAS Emmy Event at Fox Studios on May 2, 2016 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
WEST HOLLYWOOD, CA - FEBRUARY 26: Ariel Winter arrives at the Vanity Fair pre-Oscar party held at Palihouse Holloway on February 26, 2016 in West Hollywood, California. (Photo by Michael Tran/FilmMagic)
HOLLYWOOD, CA - FEBRUARY 12: Actress Ariel Winter attends the Delta Air Lines celebrates 2016 GRAMMY Weekend with 'Sites and Sounds' private performance with Leon Bridges on February 12, 2016 in Hollywood, California. (Photo by JB Lacroix/WireImage)
LOS ANGELES, CA - JANUARY 30: Actress Ariel Winter arrives at the 22nd Annual Screen Actors Guild Awards at The Shrine Auditorium on January 30, 2016 in Los Angeles, California. (Photo by Gregg DeGuire/WireImage)
NEW YORK, NY - DECEMBER 11: Actress Ariel Winter attends Z100's Jingle Ball 2015 at Madison Square Garden on December 11, 2015 in New York City. (Photo by Craig Barritt/Getty Images for iHeartMedia)
BURBANK, CA - NOVEMBER 14: Actress Ariel Winter attends the premiere of Disney Channel's 'The Lion Guard: Return Of The Roar' at Walt Disney Studios on November 14, 2015 in Burbank, California. (Photo by Paul Archuleta/Getty Images)
HOLLYWOOD, CA - OCTOBER 31: Ariel Winter attends the Just Jared Halloween party at No Vacancy on October 31, 2015 in Hollywood, California. (Photo by JB Lacroix/WireImage)
BEVERLY HILLS, CA - OCTOBER 27: Actress Ariel Winter arrives at the International Women's Media Foundation Courage Awards at the Beverly Wilshire Four Seasons Hotel on October 27, 2015 in Beverly Hills, California. (Photo by Amanda Edwards/WireImage)
BEVERLY HILLS, CA - OCTOBER 27: Actress Ariel Winter arrives at the International Women's Media Foundation Courage Awards at the Beverly Wilshire Four Seasons Hotel on October 27, 2015 in Beverly Hills, California. (Photo by Jon Kopaloff/FilmMagic)
CULVER CITY, CA - OCTOBER 25: Actress Ariel Winter attends the Elizabeth Glaser Pediatric AIDS Foundation's 26th A Time For Heroes family festival at Smashbox Studios on October 25, 2015 in Culver City, California. (Photo by Jason LaVeris/FilmMagic)
BEVERLY HILLS, CA - OCTOBER 27: Ariel Winter attends 2015 International Women's Media Foundation Courage Awards Los Angeles at Regent Beverly Wilshire Hotel on October 27, 2015 in Beverly Hills, California. (Photo by Stefanie Keenan/Getty Images for International Women's Media Foundation)
LOS ANGELES, CA - OCTOBER 02: Laurent Gaudette and Ariel Winter attend Teen Vogue's 13th Annual Young Hollywood Issue Launch Party on October 2, 2015 in Los Angeles, California. (Photo by Jason Kempin/Getty Images)
LOS ANGELES, CA - SEPTEMBER 20: Actress Ariel Winter arrives at the 67th Annual Primetime Emmy Awards at Microsoft Theater on September 20, 2015 in Los Angeles, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
LOS ANGELES, CA - SEPTEMBER 20: Actress Ariel Winter attends HBO's official 2015 Emmy After Party at The Plaza at the Pacific Design Center on September 20, 2015 in Los Angeles, California. (Photo by Paul Archuleta/FilmMagic)
LOS ANGELES, CA - SEPTEMBER 20: Actress Ariel Winter attends the 67th Primetime Emmy Awards Fox after party on September 20, 2015 in Los Angeles, California. (Photo by Tommaso Boddi/WireImage)
WEST HOLLYWOOD, CA - SEPTEMBER 18: Ariel Winter arrives at the Variety And Women In Film Annual Pre-Emmy Celebration at Gracias Madre on September 18, 2015 in West Hollywood, California. (Photo by Steve Granitz/WireImage)
WEST HOLLYWOOD, CA - SEPTEMBER 18: Actress Ariel Winter arrives at the Variety And Women In Film Annual Pre-Emmy Celebration at Gracias Madre on September 18, 2015 in West Hollywood, California. (Photo by Jon Kopaloff/FilmMagic)
WEST HOLLYWOOD, CA - AUGUST 27: Actress Ariel Winter arrives at Just Jared's Way To Wonderland Presented By Ever After High at Greystone Manor Supperclub on August 27, 2015 in West Hollywood, California. (Photo by Jon Kopaloff/FilmMagic)
WEST HOLLYWOOD, CA - SEPTEMBER 16: Ariel Winter arrives at the People's 'Ones To Watch' Event at Ysabel on September 16, 2015 in West Hollywood, California. (Photo by Steve Granitz/WireImage)
LOS ANGELES, CA - AUGUST 22: Actress Ariel Winter attends a private event at Hyde Staples Center hosted by Tommy Bahama during the Taylor Swift concert on August 22, 2015 in Los Angeles, California. (Photo by Jason Merritt/Getty Images for Tommy Bahama)
D23 EXPO 2015 - D23 EXPO, the ultimate Disney fan event, brings together all the past, present and future of Disney entertainment under one roof. Taking place August 14-16, this year marks the fourth D23 EXPO at the Anaheim Convention Center and promises to be the biggest and most spectacular yet. (Photo by Disney/Image Group LA via Getty Images) ARIEL WINTER
CENTURY CITY, CA - MAY 18: Ariel Winter attends the ATAS Screening of the 'Modern Family' Season Finale 'American Skyper' at the Fox Studio Lot on May 18, 2015 in Century City, California.(Photo by JB Lacroix/WireImage)
LOS ANGELES, CA - MARCH 29: Actress Ariel Winter arrives at the 2015 iHeartRadio Music Awards at The Shrine Auditorium on March 29, 2015 in Los Angeles, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
INGLEWOOD, CA - MARCH 28: Actress Ariel Winter arrives at Nickelodeon's 28th Annual Kids' Choice Awards at The Forum on March 28, 2015 in Inglewood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
LOS ANGELES, CA - MARCH 29: Actress Ariel Winter arrives at the 2015 iHeartRadio Music Awards at The Shrine Auditorium on March 29, 2015 in Los Angeles, California. (Photo by Jon Kopaloff/FilmMagic)
HOLLYWOOD, CA - MARCH 14: Actress Ariel Winter attends the 'Modern Family' event at the 32nd annual PaleyFest at Dolby Theatre on March 14, 2015 in Hollywood, California. (Photo by Jason LaVeris/FilmMagic)
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