Bennifer starts trending on Twitter as Jennifer Lopez and Ben Affleck escape to Montana together 

Following pictures of Jennifer Lopez and Ben Affleck in Montana together last week, it’s no surprise that Twitter is abuzz with the speculation that Bennifer is back on.

17 years after they ended their engagement, the actors took a romantic trip to a luxury ski resort together, with exclusive Dailymail.com photos showing them at an airport together on Saturday.

And it wasn’t long before ‘Bennifer’, the nickname they were given back when they were Hollywood’s hottest couple, was trending again, with fans sharing their excitement – and their 2004 jokes – about the reunion.

Back on! Bennifer was trending on Twitter on Monday after Dailymail.com published photos of Jennifer Lopez and Ben Affleck in Montana together last week

‘cicada brood is here, bennifer is back, all we need is an Usher song of the summer and i’m ready for you 2004!’ one user wrote.

Several tweeters pointed out that the Bennifer have reunited at the same time the Brood X cicadas – a type of insect – have started reemerging from the ground after exactly 17 years. 

‘correlation does not imply causation AND YET #broodx #bennifer’ another person wrote with the two headlines side-by-side.

‘In honor of #Bennifer of being back I’m plugging in my old iPod to see if it still works.’ one person joked, referencing the popular gadget of the early 2000s. 

‘I reject the return of low-rise jeans, but welcome the return of Bennifer discourse.’ came another comment noting an early naughties fashion trend that has reemerged.

History repeats: Fans shared their excitement at the prospect of the famous couple reconciling and made jokes about it being like 2004 again

History repeats: Fans shared their excitement at the prospect of the famous couple reconciling and made jokes about it being like 2004 again

Coincidence? Several tweeters pointed out that the Bennifer have reunited at the same time the Brood X cicadas - a type of insect - have started reemerging from the ground after exactly 17 years

Coincidence? Several tweeters pointed out that the Bennifer have reunited at the same time the Brood X cicadas – a type of insect – have started reemerging from the ground after exactly 17 years

Laughs: Another person made a noughties reference  with an iPod joke

Laughs: Another person made a noughties reference  with an iPod joke

Welcome back Bennifer: Another comment noted an early 2000s fashion trend that has reemerged

Welcome back Bennifer: Another comment noted an early 2000s fashion trend that has reemerged

‘Terrible. The last thing the world needs right now is a Gigli sequel’ quipped another Twitter user referencing the movie Ben and Jennifer made together which was a box office bomb. 

‘Is it Earth Day because JLo just recycled an ex?’ came another jokey tweet. 

Ben whisked his former flame away on a private jet this past weekend for a romantic getaway trip to a luxury ski resort in Montana, where the actor is understood to own a chalet.

In exclusive pictures obtained by DailyMail.com, Ben, 48, and Jennifer, 51, sat side-by-side in an SUV, with the Good Will Hunting star in the driver’s seat, amid rumors he’s been spending time at the singer’s LA mansion on multiple occasions. 

Another person made a joke referencing the movie Ben and Jennifer made together in 2003 which was a box office bomb

Another person made a joke referencing the movie Ben and Jennifer made together in 2003 which was a box office bomb

Recycling: This user joked about JLo getting back with an ex

Recycling: This user joked about JLo getting back with an ex

Joy: Some celebs also chimed in like Kathy Griffin who admitted she was excited

Joy: Some celebs also chimed in like Kathy Griffin who admitted she was excited 

The actor is said to own a ski chalet at the Yellowstone Club in Big Sky, Montana – where he’s believed to have stayed with Jennifer – having taken family vacations there with ex-wife Jennifer Garner and their three children, Violet, 15, Seraphina, 12, and Samuel, nine. 

Sources have claimed to E! that the pair spent ‘about a week’ together at the club, and they ‘were alone’ during their stay. They arrived back in LA on Saturday.

The former celebrity couple – who were engaged in 2002 but postponed their 2003 wedding and officially split in 2004 – have been seen reuniting with one another following JLo’s split with ex-fiancé Alex Rodriguez.

On Sunday, Jennifer posted a Mother’s Day snap of herself with her 13-year-old twins Max and Emme and her mother Guadalupe Rodríguez, though it is not clear exactly when and where the photo was taken. 

Talking about their getaway, a source told PEOPLE on Monday: ‘[Jennifer] spent several days with Ben out of town. They have a strong connection. It’s all been quick and intense, but Jennifer is happy.’

Time machine: Some fans shared snaps of the couple when they were together like this one of them arguing at a Blockbuster

Time machine: Some fans shared snaps of the couple when they were together like this one of them arguing at a Blockbuster

Throwback: The reunion made fans feel nostalgic. 'In honor of #Bennifer of being back I'm plugging in my old iPod to see if it still works.' one person joked

Throwback: The reunion made fans feel nostalgic. ‘In honor of #Bennifer of being back I’m plugging in my old iPod to see if it still works.’ one person joked

Known as ‘Bennifer’ at the time of their romance, recent reports have suggested that the pair are now ‘just friends,’ though it certainly appears that they have grown much closer over the past few weeks.

Last month, Ben was seen arriving at Jennifer’s home in a white Escalade SUV that is said to belong to the Hustlers star. He was later seen being dropped off by the singer’s security.

It was reported that the pair had seen each other on three separate occasions during that time, with the Gone Girl actor leaving his car at the Hotel Bel-Air and being picked up in Jennifer’s vehicle hours later.

Ben and Jen are seen here making their way to an airport in Montana before flying back to LAX on Saturday

Ben and Jen are seen here making their way to an airport in Montana before flying back to LAX on Saturday

Cozy: The actor is said to own a ski chalet at the Yellowstone Club in Big Sky, Montana - where he's believed to have stayed with Jennifer

Cozy: The actor is said to own a ski chalet at the Yellowstone Club in Big Sky, Montana – where he’s believed to have stayed with Jennifer

Lopez and Affleck started dating in 2002 and announced their engagement that November. In September 2003, just days before the couple was to say ‘I do,’ they called off their wedding. Months later the couple broke up for good in January 2004.

Last month Jennifer confirmed she had split from Alex, 45, after four years, saying in a statement that they were ‘better off as friends’ amid claims of infidelity.

In a joint statement, they said of their decision: ‘We have realized we are better as friends and look forward to remaining so…’

‘We will continue to work together and support each other on our shared businesses and projects. we wish the best for each other and each other’s children.’ 

Meanwhile, Ben split from girlfriend Ana de Armas, 33, earlier this year after one year of dating. 

Lopez and Affleck started dating in 2002 and announced their engagement that November. In September 2003, just days before the couple was to say 'I do,' they called off their wedding. Months later the couple broke up for good in January 2004

Lopez and Affleck started dating in 2002 and announced their engagement that November. In September 2003, just days before the couple was to say ‘I do,’ they called off their wedding. Months later the couple broke up for good in January 2004