There appears to be a battle of the PDAs going on with the cast of Selling Sunset, as the Oppenheim Group enjoy a luxurious vacation to Italy while enjoying a break from filming the hit Netflix show. Packing on the public displays of affection were new couple Chrishell Stause and Jason Oppenheim, Romain Bonnet and his wife Mary Fitzgerald, and Brett Oppenheim and girlfriend Tina Louise, as they arrived in Rome, a city synonymous with romance. Meanwhile, their co-star and show 'villain' Christine Quinn was also seen rivaling their amorous displays, as she was pictured in Sicily passionately kissing her Christian Richard while in a bikini. Chrishell, 40, and Jason, 44, looked particularly enamored with one another, having only just gone public with their hot new romance this week. The pair barely came up for air as they made out publicly with Chrishell cradling Jason's head with her hands. Australian model Tina Louise, 40, who has been linked to Brian Austin Green and P Diddy, has been dating Brett, 44, since April this year. City of love: The loved-up pair looked comfortable while packing on the PDA in Rome Holding her close: The pair couldn't keep the smiles off their faces while embracing near the water Shock twist: Fans were sent into a frenzy this week when it was revealed Chrishell is now dating her boss Hot new couple! Chrishell, 40, and Jason, 44, looked particularly enamored with one another, having only just gone public with their hot new romance this week Going to town... literally! Jason and Chrishell barely came up for air while on their romantic trip with the cast At one point, Brett and Tina appeared to be in their own world as they kissed one with their arms wrapped around one another with crowds of people around them. Romain, 26, and his wife Mary Fitzgerald, 39, also put on a show, and proved that they're still very much in the honeymoon period, despite being married since March 2018. The group - who are used to luxury surroundings dealing with million-dollar real estate in LA - have been staying at the stunning five-star hotel, Le Sirenuse in Positano. Proving their love: Romain went all out when kissing wife Mary, who used to date Chrishell's man Jason No, WE'RE the happiest! Romain and Mary put on a rival display of affection while trustee photographer Tina Louise takes a snap All together now: The star couples line up after madly kissing by the fountain for a photo opp In each other's arms: While taking part in an impromptu photoshoot, the couple put on a passionate display 'Arrived in Positano last night without our luggage,' Tina Louise told fans this week, showing off the hotel's incredible views, adding: 'Lucky this hotel and view make up for it.' Mary also posted a loved-up message about Romain, saying: 'I'm in heaven! Vacationing with my true love and best friends in one of the most beautiful cities on earth.' However, most eyes were on new couple Chrishell and Jason - as fans of the show have been shocked to find out she is now dating her boss. Love: Australian model Tina, 40, who has been linked to Brian Austin Green and P Diddy, has been dating Brett, 44, since April this year Our turn! After taking photos of the other couples, Tina got a smooch from her man Brett Coming up for air: After packing on the PDAs, the couples took time out for a group photo 'So happy for you guys! Finally people will stop with Jason and Mary hopefully,' costar Romain joked in an Instagram comment, referencing his wife Mary Fitzgerald's past romance with Jason. 'Love you Chrishell. Thank you for making my brother happy,' Jason's twin brother Brett Oppenheim commented. Brett's girlfriend Tina was over the moon learning the relationship had finally made it to social media. Girls who like boys: The couples' appear to be getting on famously as they enjoy their trip They must have a good one by now: The group appeared to be taking a bunch of snaps while posing near the city's famous Spanish Steps Kissing content! The couples' appeared to be taking it in turns to snap one another's PDAs Impressive: Jason and Chrishell certainly scored extra points for their commitment to kissing Not just for the photo opps: The pair genuinely appear to be head over heels for one another 'Awwwww!!!! Congratulations you guys!! Finally IG official,' Tina commented. Mary Fitzgerald wrote: 'Nothing makes me more excited than to see two of my closest friends together and making each other so happy!' Jason left a red heart emoji in the comments section. And it seems that the couple are in the perfect destination to explore their new romance. Don't forget about me! Meanwhile, the show 'villain' Christine was seen enjoying a luxury vacation in Southern Europe with her husband of nearly two years, retired tech entrepreneur Christian Richard, for the past week Stunners: The married couple soaked up the sun as they enjoyed their lush vacation in Sicily Meanwhile, the show 'villain' Christine was seen enjoying a luxury vacation in Southern Europe with her husband of nearly two years, retired tech entrepreneur Christian Richard, for the past week. The loved-up pair were seen in Capri, Italy several days ago but on Friday were pictured enjoying the coast of Taormina, Sicily in Italy as they went for a dip in the sea. The Selling Sunset beauty, 31, looked incredible in a colorful string bikini after she welcomed her son, Christian Georges Dumontet, only two months ago. Winners: Chrishell and Jason left the romantic scene and must have felt proud of the PDA display All rights reserved for this news site (dailymail) and under his responsibility