The reality TV star, 25, and her beau looked loved-up and happy on their romantic date as a family of three.
The couple took their newborn son Paul to one of their favourite places, the Dorchester Hotel in London.
Alongside a photo of daddy Paul kissing his six-week-old son on the top of his head, Sam posted two heart emojis alongside the message: "My valentines at our fav xx."
She also shared a selfie of her and Paul kissing while she carried their bubba in a baby carrier on her chest.
The sweet photos come just days after a one-off documentary about their baby journey divided viewers.
When Sam Faiers: The Baby Diaries aired on ITVBe last Sunday (7 February), Paul became the subject of criticism from fans.
One of the controversial moments seemed to be when he kissed his own mother on the lips.
Sam was forced to defend her man, when she tweeted: "Wow Paul really is getting some stick. I wish people wouldn't look into it so much. It's just a TV show edited & made for good viewing.
"Yes he fell asleep reading baby books, didn't attend yoga & no he doesn't cook but he is the most caring loving man I know and the best daddy to baby Paul," she insisted.
One of her 1.5million Instagram fan had some words of wisdom for the couple and commented on the new photos, saying: "Baby paul has grown up. BeautIful baby. This is why i am so happy i am not famous or in public eye. Never share too much of your family life. Only share with family and friends no strangers."
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