Millie Mackintosh breastfeeds baby daughter Sienna in sweet throwback snap from her Santorini

She recently returned from a family getaway to Santorini, Greece. 

And Millie Mackintosh was feeling reflective on Wednesday as she shared a sweet throwback snap from her holiday. 

In the photo, the former Made In Chelsea star, 31, breastfed her baby daughter Sienna, three months, while relaxing on a sunlounger on the beach.

Lovely: Millie Mackintosh was feeling reflective on Wednesday as she shared a sweet throwback breastfeeding snap from her holiday to Santorini

Millie looked effortlessly chic in a white cotton maxi dress and stylish nude pink sunglasses. 

Beaming to the camera as she cradled baby Sienna, the new mother had styled her brunette locks into a relaxed bun and gone makeup-free to soak up the sunshine.

In her caption, Millie admitted that she was pining for another holiday and an idyllic beach day with her daughter. 

The star also lauded her white cotton maxi dress for its duel functionality, revealing she could easily transition from ‘Millie’ to ‘Mamma’.  

Idyllic: The former Made In Chelsea star, 31, and husband Hugo Taylor recently enjoyed their first family holiday with Sienna to the Greek hotspot

Idyllic: The former Made In Chelsea star, 31, and husband Hugo Taylor recently enjoyed their first family holiday with Sienna to the Greek hotspot 

She penned: ‘Missing beach days with my babe but hoping our UK Indian Summer returns soon! I loved wearing this Angelica dress on holiday. Most of my clothes at the moment need a duel functionality element.

‘One to make me feel good and the other being easy access for Sienna when feeding time comes around. With a button down front my transition from “Millie” to “Mamma” was easy be it at lunch / dinner or at the beach thrown over a bikini. 

‘The perfect combination for hot summer weather and breastfeeding #ad #millieXpitusa @pitusa.co #collab.’

The photo comes after Millie posed in underwear while showing baby Sienna, three  months, who was recently diagnosed with hip dysplasia, wearing her hip brace in a different Instagram snap earlier this week.

Morning! The photo comes after Millie posed in underwear while showing baby Sienna, three months, who was recently diagnosed with hip dysplasia, wearing her hip brace in a different Instagram snap earlier this week

Morning! The photo comes after Millie posed in underwear while showing baby Sienna, three months, who was recently diagnosed with hip dysplasia, wearing her hip brace in a different Instagram snap earlier this week

The new mum smiled happily as she showcased her slim frame in a black bra and briefs set, after sharing a breastfeeding snap of herself bonding with her little girl. 

Last week, the mother-of-one admitted it was the ‘hardest’ thing she has had to overcome as a parent, after being told Sienna would wear a harness for up to 12 weeks.

Despite her own initial struggles with the news, Millie praised her baby girl for being able to ‘adapt’ to wearing a harness – which she is allowed to remove once a day. 

Discussing Sienna’s hip dysplasia, Millie said: ‘Now the shock’s worn off, babies are incredible at adapting. It’s been one of the hardest things we’ve overcome as a parent. 

‘Sienna has already adapted, harder for the parents to adapt. Sienna is able to take off her harness once a day.’   

Bonding: The new mum smiled happily as she showcased her slim frame in a black bra and briefs set, after sharing a breastfeeding snap of herself bonding with her little girl

Bonding: The new mum smiled happily as she showcased her slim frame in a black bra and briefs set, after sharing a breastfeeding snap of herself bonding with her little girl

Millie first detailed her ’emotionally challenging’ week after discovering her little girl Sienna has developmental hip dysplasia on Saturday.

She said her little girl was diagnosed with the condition during a follow up appointment after a routine scan. 

The diagnosis means that Sienna will have to wear a special harness for six to 12 weeks in order to treat the dysplasia and new mum Millie admitted she is finding it tricky to cuddle and breastfeed her daughter.

According to the NHS website, developmental dysplasia of the hip (DDH) is a condition where the ‘ball and socket’ joint of the hip does not properly form in babies and young children.

Candid: Millie first detailed her 'emotionally challenging' week after discovering her little girl Sienna has developmental hip dysplasia on Saturday

Candid: Millie first detailed her ’emotionally challenging’ week after discovering her little girl Sienna has developmental hip dysplasia on Saturday

It’s sometimes called congenital hip dislocation or hip dysplasia. The hip joint attaches the thigh bone (femur) to the pelvis. The top of the femur (femoral head) is rounded, like a ball, and sits inside the cup-shaped hip socket.

In DDH, the socket of the hip is too shallow and the femoral head is not held tightly in place, so the hip joint is loose.

Millie explained that ‘Sienna had a routine hip scan at 6 weeks because she was breech from 28 weeks onwards.’

She added: ‘Apparently, it has a 90% chance of totally correcting her hip, so she hopefully shouldn’t need surgery or have any issues with her movement, so we are remaining positive and grateful that we found out early.’

Millie and her husband Hugo Taylor welcomed their first child together, baby Sienna, in May.  

Family: Millie and her husband Hugo Taylor welcomed their first child together, baby Sienna, in May

Family: Millie and her husband Hugo Taylor welcomed their first child together, baby Sienna, in May 

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