Los Angeles, California - Sydney Sweeney launched a sexy campaign for her SYRN in honor of her upcoming birthday!

The Housemaid star stripped down for her latest line, aptly called Birthday Boobs, which she teased via her brand's official Instagram page.

Sydney's new collection includes the Fall For Me Plunge Bra, Between The Lines G-String, Hold On Tight Garter Belt, and Ruffle My Feathers Thigh Straps.

In one post, the 28-year-old modeled a baby blue, ditsy floral set with matching tights and nude pumps as she posed beside a refrigerator with a glass bottle of milk.

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The photo dump also featured a cake with the words "I really love you" on it, plus behind-the-scenes footage of Sydney making the dessert.

She teased in the caption, "Step into the world of Birthday Boobs."

Another shot featured the Euphoria alum in an all-pink negligee that featured a plunging top adorned in florals and a see-through skirt over her matching thong.

Sydney's 29th birthday isn't until September 12, but her steamy gift to fans will drop on September 1!

Sydney has been quite busy this summer, as she teamed up with America Eagle for another collab after her controversial "Good Genes" campaign while also spending time with her boyfriend, Scooter Braun.