Posing with six of Rio's female family members, Kate looked like she was fully embracing her new role as a stepmother as she clutched Rio's six-year-old daughter Tia.
They have started to tentatively share photos showing that they are spending time with each others' families.
And after Kate Wright, 26, and Rio Ferdinand, 38, shared their first photo together on Saturday, it appears that there's no stopping the couple from proclaiming their love for one another online, as Kate shared a sweet family photo while on holiday in Portugal on Monday.
Posing with six of Rio's female family members - including his sister Sian, and relations Anya, Lucy and Chloe Ferdinand, who are thought to be his nieces - Kate looked like she was fully getting into the swing of Rio's family life as she tenderly cuddled Rio's six-year-old daughter Tia.
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Family love: Kate Wright, 26, posted a photo surrounded by her boyfriend Rio Ferdinand's family, and even cuddled his six-year-old daughter Tia for the shot
Kate continued to solidify her place within the Ferdinand family on Sunday, when she shared another bikini snap with Rio's little half sister Sian.
Snapped in the same fuchsia bikini, which best showcased her ample assets, Kate shared yet more insight into her family break in Portugal with 38-year-old Rio.
Former The Only Way Is Essex beauty Kate drew attention to her incredibly tiny waist with the sheer sarong tied at her right hip in a huge bow.
Happy days: The 24-year-old stunner has taken her relationship with Rio, 38, to the next level by going on holiday with his family
One of the family! Kate showed off her sensational figure in a bikini as she cosied up to beau Rio Ferdinand's half sister Sian in Portugal, which she shared on Instagram on Sunday
Getting into the holiday mood, she wore her trademark golden locks in a choppy style as they posed beside the pool.
Rio's sister also impressed onlookers with her luminous tangerine bikini which showed off her deep holiday glow.
The ladies showed how well they were getting on as Sian slipped her arm around Kate's waist.
Glam: Rio appears to finally be ready to go fully public with his TOWIE star girlfriend Kate as he shared the first ever snap of the duo on either his or her Instagram on Saturday
In good company, they both posed up a storm in mirrored specs which kept their eyes sheltered from the sun.
Sian also paid tribute to her big brother with a heartfelt caption on her Instagram picture, where Rio wrapped his muscular arms around her neck.
Of her sibling, she wrote: 'Through the smiles the laughters the tears & hard moments you've been there each step of the way with me.
'It's been a long road and we both know it's not been easy, but thank you for being a rock when I've needed you, mummy would be so proud of the man you are today. I've got you always! Love you Big Bro #HerRoyals.' (sic)
Super close! Sian also paid tribute to her big brother with a heartfelt caption on her Instagram picture, where Rio wrapped his muscular arms around her neck
The gushing post proves that the tight knit bunch have welcomed Kate into the family with open arms.
Until now, no pictures have shown Kate with the sportsman, despite spending a week away with his friends and family.
Taking to his Instagram account, Rio's 2.4million followers were treated to the snap of his entire family while Kate beamed in the middle while sporting a pink bikini.
The footballer added a caption on the shot reading: 'Decent day with the fam', alongside a heart emoji in a happy nod to the state of their relationship.
Kate has been enjoying a break with the former Manchester United footballer in Portugal after officially confirming their romance.
And a smitten Kate looked as if her relationship was going from strength to strength as she joined her beau's half sisters for an alfresco lunch on Tuesday - yet remained hesitant to share as snap with Rio.
Lunch with the girls: And a smitten Kate looked as if her relationship was going from strength to strength as she joined her beau's half sisters for an alfresco lunch on Tuesday - yet remained hesitant to share as snap with Rio
Hunky: Rio shared a shirtless snap of himself reclining on a boat but keeping coy about his romance he captioned the shot: 'Decent day with the family on the boat... just taking in some much needed sun!'
New love: The footballer added a caption on the shot reading: 'Decent day with the fam', alongside a heart emoji in a happy nod to the state of their relationship
Looking sharp! Kate could barely contain her excitement putting on a very busty display via Instagram on Friday
Weighing in on the situation: The snap comes after it was claimed Kate and Rio have taken it to the next level, as her best pal and fellow TOWIE star Mike Hassini claimed that the football ace has met her family
Weighing in: Now Mike has claimed it is not only Kate - who was previously in a romance with TOWIE's Dan Edgar - meeting the family, but the footballer has also met the Wrights as he 'wants to make sure they’re apart of each other’s lives'
Looking good: Kate seemed to be thoroughly enjoying the sunnier climes during her family break
Blossoming: After months of speculation, the blonde beauty and Rio have finally gone public with their romance and jetted to Portugal together at the start of August for their first romantic break
'It's so nice to see her in love': Chloe Sims has revealed that Kate is smitten with her former footballer beau Rio
'She's really happy': Taking to her column with Star magazine, Chloe revealed: 'I caught up with Kate Wright over FaceTime before she went on holiday with Rio Ferdinand and she seems really happy and positive'
Red hot! Chloe informed readers that she had spoke to Kate - who chose to quit The Only Way Is Essex earlier this year - prior to her jetting off with Rio and received an update on the duo's blossoming romance
Every day is bikini day: Kate has been showcases her striking curves over recent days in an array of swimwear during the break away
Sensational: Kate flashed her incredibly toned physique in a scanty selfie that teased a slither of underboob during the romantic break
Hitting the town: Now it seems the romance is heating up, as Rio cosied up to the blonde beauty in a snap as they hit the town where Kate looked a vision earlier in the week
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