Sydney Sweeney Poses in Lingerie With Birthday Cakes

Instagram/@sydney_sweeney/@syrn Sydney Sweeney is celebrating her birthday early with a little cake—and not much else.

The 28-year-old actress stripped down for a new campaign promoting the latest collection from her lingerie brand, Syrn (pronounced “siren”), titled “Birthday Boobs.” On August 27, Sweeney announced the collection on Instagram , ahead of her 29th birthday on September 12.

The collection launches September 1.

“Celebrate my birthday month with my newest @syrn collection 🎂 coming September 1,” she captioned a video showing off the new pieces.

The playful campaign features Sweeney modeling a series of lingerie looks in a retro-inspired setting.

She appears in six different outfits throughout the video, including sheer lace sets, pastel-colored pieces, garters, a black ensemble, and a floral outfit.

But one moment takes the birthday theme literally.

In a brief scene, Sweeney goes topless while covering her breasts with two mini birthday cakes.

She later appears eating cake in a black risqué set, posing among balloons.

The campaign was photographed by Greg Swales.

The “Birthday Boobs” collection is part of Syrn’s “Romantic” category and includes bras, thongs, camisoles, matching sets, and garter belts in baby blue, baby pink, and black.

The pieces also feature the brand’s first embroidered details, including Sweeney’s handwritten message, “I really love you.” View this post on Instagram The Euphoria alum launched Syrn in January, after teasing the brand with an attention-grabbing stunt: She and a camera crew climbed toward the Hollywood sign and decorated the iconic letters with bras.

The stunt drew criticism after the Hollywood Sign Trust said it had not granted permission for the promotion.

When the brand launched, she told Elle that she wanted to create lingerie that “understands women instead of talking at them,” emphasizing comfort, confidence, and choice.