Dating

Hilary Duff has a new young dude in her life, and he's already getting very familiar with her bikini bod.

Hilary was with the mystery man over the weekend on a Malibu beach. Don't know how long they've been together, but they weren't shy about getting physical in the water. Besides a makeout sesh ... they also did some surfing.

She's definitely got his back.

Looks like Hil's moved on from celeb trainer Jason Walsh, who she was dating this past Fall.

Wiz Khalifa is totally cool with 21 Savage hanging around his baby mama, Amber Rose, or their kid.

We got Wiz leaving Tao in Hollywood, arm in arm with Brazilian model Izabela Guedes, who he's been dating for several months. We asked him about Amber getting close with Savage, and he says -- early reviews are good for the new rapper in her life.

But honestly ... Wiz seemed to be on cloud 9 about everything -- his new chick, new music, his fans. Basically, it's all good in Wiz's hood.

Amber's too ...

10:03 AM PT -- Looks like Bella was having a little fun with her latest beau, who actually turns out to be Blackbear disguised as DJ Marshmello, not 'mello himself.

While the all-white outfit and square-shaped helmet are typical for Marshmello, the ink on display definitely belongs to Blackbear.

Blackbear and Marshmello have a new collab due out soon and yesterday, Blackbear posted a pic on his Instagram of him wearing Marshmello's helmet.

Bella Thorne is no marshmello ... but she's dating one.

Bella and DJ Marshmello showed up at The Filmore in NYC Saturday night to watch Blackbear.

No one knows who Marshmello really is -- could be Scott Disick -- but she seemed into him .. at least for the night.

He blew up in 2015 when he released remixes of Zedd's "Beautiful Now," Jack U's "Where Are U Now" and other stuff as well.

As for Scott ... they seem to be hooking up, but on both ends it seems pretty non-exclusive.

Drew Carey's new girlfriend is a sex therapist who moonlighted as a model on "The Price Is Right" ... the live touring show, though -- not Drew's TV show.

Sources tell us Carey met Dr. Amie Nicole Harwick just over a month ago at a house party. They started dating soon after and are now official -- they went to a soccer game in Portland, and goofed around on the field. Drew's a huge soccer fan and the good doc seemed impressed with his seats.

The 36-year-old therapist is also the author of the book, "The New Sex Bible for Women."

Carey was previously engaged to Nicole Jaracz, but they split up in 2012 before making it to the altar.

If Drew need some motivation to make this one work out -- check her degree. Not to mention her modeling portfolio ...

Scarlett Johansson has ping ponged back to Colin Jost, if this pic is any indication.

Scarlett and the "SNL" star were super cozy dining at The Palm Friday night in East Hampton. They closed the place down at around midnight. Diners say it got pretty romantic with a smooch here and there.

The actress, who recently filed for divorce, had been dating Colin but just 2 weeks ago it appeared she started dating her lawyer, Kevin Yorn.

Amber Rose and 21 Savage are not only together ... they're on the fast track for "happily ever after."

We're told, since first hooking up several weeks ago, they've been together every day and night for the past 2 weeks.

Get this ... she's already taken him to meet her mom and the rest of the family, and she followed suit by meeting his mom and cousins.

We're told Savage has "bonded" with 4-year-old Bash.

As for their age difference -- she's 33 and he's 24 -- Amber thinks it's both irrelevant and a double standard. Rose and Kanye had a 7 year age gap, and no one threw shade then.

Short story ... this is not just casual dating. They are in a race to the finish.

Amber Rose and 21 Savage haven't said they're official but it ain't hard to read between the lines.

Amber and the rapper broke bread at Catch in WeHo Wednesday night ... the second time they've been seen out in a week.

Side note -- Amber just might've made the perfect audition tape with our camera guy for a role in the 'Fast & Furious' films.

Strap in, Savage, it's gonna be a wild ride.

Rachel Lindsay got rid of all the black suitors on Tuesday's episode of 'The Bachelorette' except one ... but even he doesn't think race had anything to do with it.

We spoke with Eric Bigger, who's the last standing African-American contestant vying for Rachel's heart this week -- and he doesn't think love has anything to do with color ... and thinks Rachel sees it the same way.

Sounds like a big change of attitude from Monday night's episode, where he pointed out most of Rachel's one-on-one dates were with non-black guys. However, he claims producers twisted his words ... and he really doesn't feel like race is a factor.

Check out his rationale on why he thinks Rachel broke down last week over racial pressure. He's got an interesting take.

Rihanna's new beau is certainly up for a new challenge -- whether it's landing a smoking hot chick or lining up hundreds of cars to smash world records.

Hassan Jameel -- the guy RiRi was sucking face with in Spain -- accepted a challenge from Guinness back in 2013 to break the world record for the largest Toyota car parade. Makes sense -- Hassan's the heir to Saudi Arabia's largest Toyota distributor.

But we did a little digging and a rep at Guinness tells TMZ no application's been submitted from Saudi Arabia Toyota since Hassan accepted the challenge. Colombia and South Africa, however, did apply.

The current record holder is Toyota Cyprus ... which paraded 742 whips back in 2015. If you're wondering what the hell a Toyota car parade is ... think your local highway at rush hour, with ONLY Toyotas.

Kris Jenner is down with Khloe Kardashian's BF in a big way.

Kris was leaving Craig's in WeHo Tuesday night when our photog asked if she would welcome Tristan Thompson to the family, and she made her feelings clear.

Khloe and Tristan joined Kris Sunday night for Khloe's 33rd birthday party, and from all accounts Khloe and Tristan are on the road to sealing the deal.

BTW ... check out the video from Sunday night ... yet another dinner at Craig's. Kris is 61. Good job!

Nicki Minaj couldn't care less about her 2 exes' drama over BET weekend ... 'cause she's got a new hip-hop king to occupy her mind.

Sources close to Nicki tell TMZ she hasn't batted an eyelash over news Meek Mill might have ordered his goons to jump her other ex, Safaree. And the reason is simple ... Nas.

We're told Nicki doesn't feel anything about the fight, mostly 'cause it's not her problem ... and both of those dudes are in her rearview. More importantly ... she's happily moving on with her new man, Mr. Jones ... although it's still in the early stages.

As we reported ... Safaree challenged Meek to a 1-on-1 fight after he claimed Meek orchestrated the attack on him. Meek denies that.

Either way, the bottom line here ... Nicki's over both Meek and Safaree, and their beef is theirs alone.

Somewhere, she and Nas are playing the Counting Crows -- looking deep into each other's eyes.

Rachel Lindsay is putting herself out there for love on "The Bachelorette" -- literally, she's hanging 187 feet in the air for it ... where make out sessions are NOT off limits.

Rachel went rappelling off a super high structure in Oslo, Norway with suave contestant Bryan Abasolo during Monday night's episode -- and on the way down, they took a break to suck a little face ... very, very loudly.

Amber Rose appears to have at least one bush backer in rapper 21 Savage ... after they left a show together in L.A.

We got them Thursday night walking out of the Belasco Theater where there was a music show put on by Red Bull. They got into his red Ferrari, and since it only seats 2 ... the math was looking good for a hookup.

Amber's not shy ... she claims she hasn't had any sex partners this year because work's kept her so busy, there's "no time for penis." Raises the question: for whom is she bringing that bush back?

Tommy Lee's post-Mötley Crüe years look a lot like he's still on the road picking up hot chicks ... like the super young brunette who was all over him after a dinner date.

The 54-year-old extremely blessed drummer had a smokin' pair of long legs and burgundy lips Wednesday night in Calabasas -- and they belong to a 30-year-old ex-Vine star Brittany Furlan.

She once had the biggest following of any woman on Vine, while Tommy's had the biggest ... popularity among rock drummers.

Good to see Tommy's still living by his motto: Live long and prosper.

Corinne Olympios' boyfriend does not believe she cheated on him, does not believe the Warner Bros. investigation was kosher, and will not dump her.

Jordan Gielchinsky has made it clear to friends ... he still believes Corinne that she was in a blackout state when she had oral sex with DeMario Jackson in a swimming pool during the first day of 'BIP' filming.

Jordan claims he has spoken to several cast members who back up her story, and he thinks the Warner Bros. investigation was a whitewash so the show could resume filming.

As we reported, multiple people who have seen the video say Corinne seemed fully engaged in the pool and at no time does she seem out of it.

We're told Corinne made a deal with Jordan ... she wouldn't have sex with anyone on the show. He thinks the swimming pool incident doesn't count because she was drunk out of her mind.

Jordan's also suspicious because he says Corinne's lawyer has not been able to see the tape but it was shown to DeMario's attorney. Our sources say Warner Bros. isn't sharing the video with Corinne's legal team because she's threatened legal action.

The question, is Jordan right ... or is he love blind?

Lady Gaga's last day of Spring played out just like the 'Little Mermaid' t- shirt she was wearing Tuesday while out with her agent-turned-boyfriend, Christian Carino.

The couple looked totally enamored with each other on a beach walk Tuesday in the Hamptons. News they were dating first came out in February, around Gaga's Super Bowl halftime gig.

Sure, she recently made out with Bradley Cooper for "A Star Is Born" -- but now it was Christian's turn to kiss the girl. And in case he needed any help ...

Percussion ...

Strings ...

Winds ...

Words ...

There you see her, sitting across the way...