Just a number! With their eyes on millennial men, Madonna, Britney Spears, Kourtney Kardashian and more show that they're young at heart.

Kate Beckinsale & Matt Rife
The 84-degree temperatures couldn't compare to Beckinsale June 20, 2017. Outside West Hollywood's Villa Lounge, the Love & Friendship star, 42, indulged in an intense makeout with actor and comedian Rife. "They couldn't keep their hands off each other," an onlooker says of the actress (mom to 18-year-old Lily with ex Michael Sheen) and Rife, 21, known for his work on the MTV sketch comedy show Wild 'N Out. "Clearly they both think the other is super hot." But the new couple — they enjoyed a movie outing in Sherman Oaks, CA, June 25 — share more than just a physical connection. Says a source, "They are very into each other

Kourtney Kardashian & Younes Bendjima
Though the 38-year-old mom of Mason, 7, Penelope, 4, and Reign, 2 (with ex Scott Disick), and the the Algerian-born model — he's posed for Calvin Klein and Burberry — don't get to spend a ton of time together, they make sure to sneak away every so often. Since splashing around Cannes, France, in May 2017, Kardashian and Bendjima continued the fun during a stay in Saint-Tropez during the Fourth of July weekend. And while the couple aren't super serious (the 24-year-old has yet to meet the reality star's kids), a source says "they really love spending time together."

Britney Spears & Sam Asghari
Spears is willing to try for love one more time. The twice-divorced pop star, 35, "swore she was done with relationships," says a Spears source. But then she met fitness model Asghari, 22, while filming her "Slumber Party" music video in October 2016, says the source, "and she couldn't resist. She thinks he's so hot." Their 13-year age gap was irrelevant, says the insider: "Britney is young at heart, so she doesn't think about it. She's happier than she's been in a long time." And stronger. The mom of Sean, 11, and Jayden, 10 (with ex Kevin Federline) "loves that Sam is so into fitness," notes the source. "Now that she's with him she works extra hard in the gym!"


Mariah Carey & Bryan Tanaka
A brief split in April couldn't keep Carey from her dreamlover. The five-time Grammy winner, 47, and backup dancer Tanaka, 34, reconciled in May, then boarded a private jet to Napa, CA. "They spent the whole time going from one vineyard to another," says a Carey insider, noting her assistant and glam squad tagged along. But even with the entourage in tow, the Memorial Day getaway was romantic. The mom of 6-year-old twins Monroe and Moroccan dubbed it "a beautiful experience."


Madonna & Kevin Sampaio
That was some kiss! Madonna and model Sampaio, 31 — who first shared an on-camera smooch in her 2015 "Bitch I'm Madonna" video — decided to test their chemistry off screen. "They have been casually going on dates for almost a year," reveals a source close to the 58-year-old mom of six (last linked to model Aboubakar Soumahoro, 26). But after a May jaunt to Lisbon, Portugal, says the source, "they're more serious."

Seriously, who cares about those people ?

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