Sydney Sweeney snapped cozying up to mystery man during Idaho lake outing

Once upon a time in Idaho…

Sydney Sweeney was photographed cozying up to a hunky mystery man during a Friday lake trip, in photos obtained by Page Six.

The actress, 27, stunned in a cheeky navy swimsuit while enjoying her sunny outing with the brown-haired guy.

The “Euphoria” star covered her one-piece with a life jacket as she shared a Sea-Doo with the unidentified individual, who held onto her waist in a safety vest of his own.

Sweeney was spotted grinning widely during their ride — and even playfully tossed the guy off the watercraft on multiple occasions.

The muscular man, who rocked tan shorts and gray sneakers, was all smiles at another point watching Sweeney swing from a rope.

While the pair were out with Sweeney’s family and friends at her family’s Idaho home, they enjoyed these cozy moments away from the group.

Sweeney’s rep has yet to respond to Page Six’s request for comment about the nature of her relationship with the man.

The “Handmaid’s Tale” alum, notably, has been single since she and ex Jonathan Davino ended their engagement.

The former couple’s breakup made headlines in March, three years after Davino’s proposal.

Sweeney and her ex-fiancé repeatedly reunited post-split but have not been photographed together since April.

She has since set tongues wagging with flirty outings, from getting close to “Housemaid” co-star Brandon Sklenar at Coachella to sharing an intimate moment with MGK in Las Vegas.

The Emmy nominee attended Lauren Sánchez and Jeff Bezos’ Italy wedding last month and reportedly danced with Tom Brady.

Love life aside, Sweeney sparked chatter earlier this week over an American Eagle ad about her “good jeans” that has been blasted as “Nazi propaganda.”

The “White Lotus” alum has yet to address the backlash.