Kourtney, Scott and Sofia are all currently on holiday together in Mexico (Picture: Rex; Getty)

Scott Disick just enjoyed the ultimate Christmas sandwich – right in the middle of girlfriend Sofia Richie, 20, and ex-girlfriend Kourtney Kardashian, 39.

Kourtney, the mother of his three children, joined Scott and Sofia on a family holiday for the first time this weekend while they took Mason, Penelope and Reign away to Cabo for the holidays and things are going swimmingly, it seems.

Scott couldnt help but call it everything a guy could want while he was pictured lounging between his girlfriend and his baby mama in a somewhat blissful scenario.

What more could a guy ask for. Threes company, the 35-year-old joked as he posted a paparazzi picture of their cosy sunbathing session on Instagram.

Underneath it, Kims BFF Jonathan Cheban joked: Who gets the pull out couch? hinting at their potentially awkward sleeping arrangements.

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While Kourtneys sister Khloe wrote: The Lord is back, before tweeting her praise for all three of them for a perfect example of real adulting.

Shed said: Beyonce proud of all of them! This is Love! Your children before anything else! All amazing adults right right (sic)!

Kourtney and Scott have been working on their co-parenting practise ever since taking a trip to Bali with their children in October, two years after calling an end to their on-off relationship.

But now the mum-of-three is starting to make an effort with Scotts partner Sofia by taking their first trip ever as one big modern family.

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Last week, it was claimed that Kourtney wanted to bury the hatchet with Sofia once and for all because it was best for the family as a whole.

She is reportedly coming to terms with the fact that Sofia spends a lot of time with her children and there looks like no end in sight for her relationship with Scott.

Relations seem to have come on leaps and bounds since a quick, tense and business-like meal at Nobu in Malibu last month signaled their first public meet-up as a trio.

MORE: Meghan Trainor marries future husband Daryl Sabara in intimate backyard ceremony in Los Angeles

MORE: Khloe Kardashian gives us whiplash as she says there will be a famous family Christmas card

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