Demi Moore, 61, rocks white bikini in sweet snap with granddaughter Louetta

She’s one white-hot grandma.

Demi Moore showed off her ageless beauty at 61 as she posed in a tiny bikini with her granddaughter, Louetta, during her daughter Scout Willis’ 33rd birthday celebration on Saturday.

The “Charlie’s Angels” star sported the sleek white swimsuit as she held hands with the pink-clad 1 year old in an adorable picture her eldest daughter, Rumer Willis, 35, posted on Instagram.

“River Monsters for @scoutlaruewillis birthday,” Rumer captioned a carousel of pics, adding, “No place I would rather be than by your side My leg bruise is courtesy of my first time trick riding on a horse woohoo.”

The photos show off the family’s fun day by the water for Scout’s birthday, including the aforementioned snap of Moore, who was helping little Louetta walk along a dock.

The “Ghost” actress wore a navy Gap baseball cap and sandals with her bikini, wearing her long hair in a side ponytail.

Meanwhile, her daughters rocked their own fun swimwear, with birthday girl Scout wearing a yellow string bikini, Tallulah, 30, sporting a tiny black bikini with a Chateau Marmont baseball cap and Rumer showing off some booty in a cheeky yellow thong one-piece.

Fans were loving Moore’s look, like one who wrote, “How the F…. Does anyone have a Grandma like Demi Moore?! I die!❤️❤️”

“I have a whole new respect for you Demi,” another Instagram user wrote, in part, adding, “People talking about all the plastic surgery you’ve had yet you’re showing the real you here.”

This isn’t the first time in recent months that the Moore-Willis family has gathered in their bikinis.

The sisters (and Louetta) matched in pink during their family beach vacation in April, and Moore — who frequently shows off her swimwear pics on Instagram — wore a sizzling leopard-print bikini in a fun Reel from the trip.

Give us Moore summer, please.