Dating

1:36 PM PT -- A law enforcement source tells us ... during the alleged incident, Lincoln grabbed the woman's hands and placed them on his own chest and stomach. We're told he then allegedly groped her breasts and grinded up on the woman. It all happened on a ship called Spirit of Boston.

A contestant on the new season of "The Bachelorette" -- who's still in contention -- became a convicted criminal charged with a sex crime just a week before the premiere.

Law enforcement sources in Suffolk County, NY tell TMZ Lincoln Adim was convicted of indecent assault and battery on May 21 from an incident that occurred in 2016. Adim was accused of groping and assaulting a woman on a cruise that year.

Crazy enough, his sentence was handed down right before the new season aired on May 28. Adim was sentenced to a year behind bars, with that term being suspended for a two-year probationary period. He also has to stay away from the victim, and attend 3 AA meetings per week for those 2 years.

If he doesn't comply with the judge's terms, he'd have to serve out a year in jail. If he does ... he can avoid that. Oh, and he's also expected to register as a sex offender.

Hailey Baldwin has seemingly made Justin Bieber the happiest we've seen him in a while ... so much so, JB's back to chatting up fans and paps.

Justin and Hailey were leaving dinner at Cecconi's Tuesday night in Brooklyn walking arm-in-arm ... and getting bombarded by fans and photogs. Hailey made for a quick escape into their waiting car, but Biebs was super friendly -- talking to fans, photogs -- and even taking a trip down memory lane with some locals.

The two, who dated briefly in 2015, were first spotted back together in Miami over the weekend. Looks like they can't quit each other now that their romance has moved to the Big Apple.

It's cool though ... we like this Justin a lot more.

Whatever Nick Jonas has going with Priyanka Chopra appears to be the real deal, because she was his date for a wedding, and not just any wedding -- it was a family affair.

The youngest JoBro and Priyanka were arm-in-arm at his cousin's wedding near Atlantic City over the weekend. She was draped in a gold dress, and Nick was suited and booted ... but no socks with his white sneakers. So chic.

While they haven't made any official announcement ... all the "new couple" signs are there. They even traveled together for the wedding -- we got shots of them arriving at JFK airport.

We're told Nick introduced Priyanka to his older brother, Kevin, and his wife, Danielle. Yeah, ya know it's beyond just banging when family meet-and-greets are going down.

Blake Griffin was Mali-boo'd up with his new girl on Sunday ... ditching his shirt for a cuddly walk together in Malibu.

The Detroit Pistons superstar and Francesca Aiello -- founder of Frankies Bikinis -- seem to be inseparable since they were spotted sucking face in his Land Rover on Saturday.

There was more of the good stuff during their quality time on Sunday ... with the 2 sharing a smooch after getting back to Blake's car.

23-year-old Aiello is the first girl Blake's been photographed out in public with since his split with Kendall Jenner ... but, by the looks of it, he ain't thinkin' about her anymore.

FYI -- Aiello's a Malibu native ... so no word on whether she's gearing up for a cold winter in Detroit or if it's just a little summer fling.

Either way ... good for these guys.

Justin Bieber and Hailey Baldwin partied like it was 2015 ... looking very much like a couple turning up all over Miami.

The Biebs and Hailey were spotted hanging out down in M-I-A on Sunday ... first hitting up a church conference before chowin' down at the ritzy Casa Tua, and then hitting up LIV Nightclub at Fontainebleau.

Our sources say Justin and Hailey walked in together around 1 AM ... where they hung out on a VIP balcony, held hands and danced together. They were definitely not trying to keep things on the DL ... showing plenty of PDA for all to see.

Justin goofed around a bit too ... busting out the Floss dance as the crowd cheered him on.

We're told Hailey and Justin left the club around 3 AM holding hands.

Olivia Culpo and Danny Amendola just can't quit each other, it seems -- they were spotted back together over the weekend, showing off major PDA ... TMZ has learned.

The recently broken up couple were very much not so at a friend's wedding Saturday in Houston, where we're told Danny was in the wedding party. Sources tell us Olivia came as Danny's date, and that they were doing lots of kissing, hugging, and hand-holding.

Keep in mind ... they split up less than 3 months ago. Olivia told Access Hollywood in March that the two had in fact gone their separate ways, and that it was fresh and hard for her to talk about. Danny was on a similar tip a few days later, offering no comment.

It appears Olivia tried the whole single thing out for a minute -- she's been spotted out on the town with her girlfriends on a number of occasions since the break up. And we're guessing Danny did the same on his end as well.

Nick Jonas and Priyanka Chopra either don't care if people know they're banging ... or they're just really awful at hiding it.

Nick and the "Quantico" star arrived together at JFK on Friday headed off to who-knows-where -- but, one thing's for sure, this is a damn good looking couple ... even if they won't admit it.

Dating rumors started last year when they arrived together at the 2017 Met Gala, but she brushed it off ... claiming they were only posing together because they were wearing the same designer.

They also hit up a Dodger game together just a couple weeks ago.

Maybe they're rocking the same designer again as they jet off -- but something tells us they're whispering something hotter than fashion tips to each other.

With Kendall Jenner apparently out of the picture, Ben Simmons MIGHT be trying to rekindle things with Tinashe ... because the two hit the same nightclub on Thursday.

The 21-year-old Philadelphia 76ers star and the 25-year-old singer both hit up Poppy nightclub in West Hollywood ... and left right around the same time.

Ben left solo at 1:37 AM on Friday morning and Tinashe left about 20 minutes later at 1:56 AM.

The two had dated for a couple of months before recently splitting -- Ben was seen out a short time later going on dates with Kendall.

But, Kendall was sucking face with Anwar Hadid in New York City earlier this week -- a sign it's probably over with Ben -- and now, he coincidentally shows up at the same club as his ex?

Fitting that Lindsey Vonn and P.K. Subban finally made their long-rumored coupling Insta official in Smashville Wednesday night, isn't it??

There have been rumors about the two for months ... but Vonn and the NHL star finally publicly confirmed their relationship last night ... hitting the red carpet together at the CMT Music Awards.

The two have been spotted hangin' out a lot recently ... taking in a Red Sox game and a Celtics playoff game last month.

They also hit business classes together at Harvard last week ... and Vonn was at one of P.K.'s playoff games last month in Nashville too.

But, they've successfully avoided taking a coupley photo until Wednesday night, when Vonn made sure to caption their selfie with a yellow heart.

Maybe it was the Keith Urban love songs that did it??

The only rocks Scott Disick and Sofia Richie's relationship is on are the ones on the beach in Malibu, because that's where they stepped out to show the world they're still going strong.

The couple hit up Nobu Monday for lunch. Definitely for the food, and also for the cameras. It's where ya go when you wanna be seen ... together. Remember, Scott himself made it seem they were dunzo -- we know he was telling people last week at Kanye's party he's a single man. Plus, he was photographed getting close to a mystery woman.

We broke the story ... Sofia wasn't happy about the incident, but she's basically over it. Proof positive -- they left Nobu together in his drop top Rolls.

Nothing says we're back on like make-up sushi and sashimi.

Sofia Richie and Scott Disick aren't over yet -- despite multiple reports saying otherwise, and a photo of Scott cozying up with another chick last week ... TMZ has learned.

Sources close to the couple tell us Sofia and Scott have not broken up, and are still very much together -- contrary to what other outlets are reporting ... that they'd supposedly split.

We're told Sofia certainly wasn't happy with the photo of Scott getting handsy with a mystery chick at Kanye's album listening party Thursday night in Wyoming -- but she hasn't pulled the plug on their relationship. As for Scott and that girl ... they're just pals.

Sources say Scott has known the woman for years, and that holding her at the party was nothing sexual ... and only lasted a few minutes. They also did not go home together. Regarding him telling people at the party he was single ... we're told that was the booze talking.

Long story short ... Scott and Sofia are still an item. So, don't count 'em out quite yet.

Nick Diaz isn't letting his domestic violence case get in the way of meeting new women -- the UFC star was out in Vegas this weekend getting hot and heavy with a new lady ... TMZ Sports has learned.

Diaz hit up XS Nightclub at the Encore Hotel on Saturday night -- where our sources spotted Nick kissing a new mystery lady right in front of everybody!!

Unclear if they're dating or if they were just having a fun night.

We're told this is NOT the woman who accused Diaz of domestic violence.

As we previously reported, Diaz was arrested a few weeks ago after another woman -- who told police she had been in a sexual relationship with Diaz for years -- claimed Diaz attacked and choked her at a Vegas home.

It's been about six months since Kendall Jenner was linked to a rumored NBA BF, but as her biking date with Ben Simmons shows ... you never forget how to date one of 'em.

Kendall was seen getting her ride on this weekend with the 76ers star point guard -- on a bicycle, folks ... relax. Eyewitnesses tell us they were cruising near The Grove in West Hollywood Sunday -- and we gotta say ... Kendall looks like the pro out of the two.

She's got solid form, AND she's got a purse on her, too, which looks perfectly in sync with her body. Much improved from 2016, when she ate s*** riding down a dirt road.

Ben, meanwhile, looks a little too big for his own bike here ... perhaps struggling to peddle, even. The dude is like 6'10", though ... maybe raise the seat next time, yeah?

Either way, it's nice to see Kendall switch up the activity for her 3rd NBA pal. Can't say we ever saw her hit the outdoors like this with Blake Griffin, or Jordan Clarkson either.

Kenyon Martin says "there's no such thing as simple flirting" anymore ... and it's all because men have crossed the line too many times when it comes to picking up women.

The ex-NBA star says he's well aware of the problems many women face in the workplace and other areas in their lives when men come on way too strong ... and it's not right.

"Over the years, men have abused their power," Martin tells TMZ Sports.

So, what happens now? Martin has advice for young men, including NBA players -- "Be smart. Notice the signs."

"No means no! Some resistance? Gotta turn away."

John Cena's desperate plea to get Nikki Bella back might've totally worked -- a month and half after calling off their engagement, the couple is working on their relationship, according to Nikki herself.

Nikki tells us they've seen each other a few times, and are trying to work things out ... day by day. You'll recall, she called off the engagement after having serious questions about their future together. John didn't want kids, Nikki did.

Cena took the breakup hard -- making red carpet pleas for her, and then going on the "Today" show to profess his undying love for his ex. As he put it, "I want to be the father of her children. I just want us to work."

Well, it's official ... Ben Simmons is 100% hanging with Kendall Jenner -- because they hit up Nice Guy in West Hollywood together on Wednesday night -- on a double date with another NBA star.

It's funny because Ben and Kendall hit up one of the most paparazzi-packed places in town -- but arrived separately so the photogs couldn't get a shot of them together.

FYI, Kendall left the restaurant around 10:45 PM to make it look like she was leaving ... but snuck back inside to hang with Ben. They both REALLY left together around 1 AM.

Still, everyone knew the jig ... especially when they left and both got into the same SUV -- along with Kylie's BFF, Jordyn Woods, who was hanging with 21-year-old rising star Devin Booker.

Of course, everybody stayed mum when we asked about relationship status -- and Ben's situation with ex-GF Tinashe ... but it's obvious the dating rumors are true.