Bethenny Frankel attended Alex Cooper's Unwell End of Summer Celebration in Montauk, New York over the weekend.
The 53-year-old former Real Housewives of New York City personality looked great in a jewel-toned green slip dress.
She put on a busty display in the slinky, low-cut number and added a yellow and red floral statement necklace.
Her lustrous, deep brunette hair was styled in a center part and tight waves that fell over her shoulders.
For her part, 30-year-old Alex wore a white mini dress with a pleated skirt and thin straps.
Bethenny Frankel attended Alex Cooper's Unwell End of Summer Celebration in Montauk, New York over the weekend
The 53-year-old former Real Housewives of New York City personality looked great in a jewel-toned green slip dress
She put on a busty display in the slinky, low-cut number and added a yellow and red floral statement necklace; pictured with Simon Huck
Bethenny's visage was aglow in soft makeup and she accessorized with a flashy gold watch, bangels, and big sunglasses.
Alex tied a cream-colored patterned scarf around her lengthy, bright blonde locks, which were arranged in loose spirals.
She added large gold hoop earrings to her look and obscured her blue eyes with a pair of black, oval-shaped sunglasses.
The Call Her Daddy podcast host punctuated her summery look with a pair of dark, heeled leather boots with pointy toes.
She was spotted with a drink in her red manicured hand throughout Saturday's outdoor party.
Cooper hosted a two-day extravaganza, with soirees taking place on both Friday and Saturday.
She named the weekend gathering "Unwell's Motel 30" as it came days after her August 21 birthday.
According to People magazine, it was a guest list-only affair and took place at The Breakers Motel.
Alex wore a white mini dress with a pleated skirt and thin straps
Alex tied a cream-colored patterned scarf around her lengthy, bright blonde locks, which were arranged in loose spirals
She added large gold hoop earrings to her look and obscured her blue eyes with a pair of black, oval-shaped sunglasses
Cooper hosted a two-day extravaganza, with soirees taking place on both Friday and Saturday
There was no shortage of revelers looking to get in on one of the end of summer bashes
It's no party without someone kicking out the jams, which is exactly what DJ Coco Robert did
the event even had someone walking around with a tray full of lip balm
Many of the young ladies came dressed in their best sexy summer ensembles
Per Alex's invites, Friday night was designated for partying and Saturday afternoon was for 'recovery.'
There was also an after-party hosted at Montauk's Common Ground.
Taking to her Instagram Stories on Sunday, she reflected on the successful weekend.
'The vibes were truly immaculate. Seeing women from all over the country come to hang out, drink yummy cocktails, get massages, pool, IVs, eat good food, and make new friends was everything.'
She added, 'The amount of you who showed up solo and left with a new friend group is epic.'
'I love you all. Let's do it again soon,' the media personality wrote before signing off with a wink emoji.
She was spotted with a drink in her red manicured hand throughout Saturday's outdoor party
She named the weekend gathering "Unwell's Motel 30" as it came days after her August 21 birthday
Also in attendance at the party were Love Island personalities Miguel Harichi and Leah Kateb, plus fencer Miles Chamley-Watson
Miguel was casually dressed in a white tank top
Influence Hallie Batchelder struck a pose for the cameras at the bash
The cocktails were flowing for many partiers as the Dj rocked the house
There were some guests who dipped their feet in the gorgeous pool
The message in the pool summed up the bash: 'older, wiser, and just as UNWELL'
Scores of guests gathered together for a group photo
Also in attendance at the party were Love Island personalities Miguel Harichi and Leah Kateb, plus Olympic fencer Miles Chamley-Watson.
People's account of the weekend listed Matt Kaplan, Maria Georgas, Hallie Batchelder, Owen Thiele, Kierra Lewis, Phoebe Gates and Sophia Kianni as guests as well.
The publication also noted that partygoers enjoyed Carbone pasta, complementary beverages at Big Al’s Bar, and a Burt's Bees popsicle stand.
Red Bull also created a VW Kombi bar with drinks from Sun Cruiser.