The former TOWIE star, 30, set out to surprise her son as she revealed that she and Paul, 31, had whisked their two children away from a luxury night away in a countryside hotel.
Sam, who revealed in November that she and Paul are expecting their third child together, took to Instagram to share a selection of videos and snaps from the getaway with her 2.5million followers.
Posting a selfie taken in the car, the stunning mum of two wrote: “One the road. Booked a little surprise for Paul”, as they set off to kickstart the birthday celebrations.
Get exclusive celebrity stories and fabulous photoshoots straight to your inbox with OK!’s daily newsletter . You can sign up at the top of the page.
She then shared an adorable shot of boyfriend Paul and baby Paul at the dinner table, revealing that they’d whisked the youngster away to a lavish hotel for the night.
The family had enjoyed a relaxing day together, and Sam told her followers: “My boys.
“So I booked a country hotel for the night. Had a very chilled lovely day. We had lunch, a swim and now chilling in the room… Room service.
“Paul & Rosie now watching a film colouring in (They’re so into colouring at the moment).”
However, the surprises didn’t stop there and Sam also told how they’d arranged for Paul’s best friend to turn up at the hotel without him knowing during their lunchtime meal.
A surprised Paul could be seen enjoying himself at the dinner table next to his dad, before his best pal Rupert walks through the door unexpectedly alongside his mum.
Posting footage of the surprise meeting to her Instagram Stories, Sam wrote: “One final surprise…Paul’s bestie Rupert for lunch & a swim. He didn’t have a clue”, alongside a love heart emoji.
Later on, Paul, Rupert, and Rosie all set off for a swim together at the hotel’s lavish swimming pool, and excitedly danced around the changing room before heading to the water.
Sam and Paul had gone all out for their son’s sixth birthday, and had their hotel room completely transformed with a series of impressive decorations.
An array of blue and brown balloons had been displayed in the room, along with a sign reading ‘Paul’s Safari.’
A huge display had been installed to be fit in with the safari theme, and the personalised sign was covered in trees and tigers.
A small blue teepee had also been put up in the room, with Paul’s incredible two-tiered birthday cake sitting on a gold stand in the middle.
Paul’s birthday cake featured bright green icing, and was decorated with various animals and a number six, along with a sign reading ‘Jumanji’.
Sharing a photo of the gorgeous celebratory cake, Sam wrote: “Huge shoutout to @Boescakes for making Paul’s birthday cake last minute.com. Thank you.”
Four year old Rosie rushed to help her older brother blow out the candles on his huge cake, as the brother and sister duo excitedly celebrated his birthday together.
Ex-TOWIE star Sam then posted a sweet snap of the pair standing next to the cake, with Rosie distracted by the decorations and Paul donning a safari hat and animal-themed pyjamas.
The family’s trip comes after Sam recently took to her Instagram Stories to post a series of adorable snaps to mark Paul’s birthday.
She shared a selection of shots Paul over the years from when he was a newborn up until now. One photograph showed parents Sam and Paul in the hospital with their first child, and an emotional Sam wrote: “6 years ago I gave birth to the most beautiful little boy.
“My first baby who made me a mummy, who changed my life forever. I can’t even remember life before you Paul.
“Thank you for being mine. I love you with every inch of me. Happy 6th birthday.”
For all the latest celebrity gossip, sign up to our daily newsletter here .