They were alleged to have called it quits when Nico Jackson wasn't invited to her mother Carole's recent birthday bash in the Caribbean.
But Pippa Middleton put rumours of a split with her handsome boyfriend to rest when the pair attended the British Heart Foundation's Roll Out The Red Ball fundraiser hand-in-hand on Tuesday evening.
Also in attendance was her brother James Middleton and his partner Donna Air, with whom Pippa seemed extremely close to at the event, held at The Park Lane Hotel in Piccadilly, London.
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Doing her bit: Pippa Middleton walked the red carpet at theBritish Heart Foundation's Roll Out The Red Ball fundraiser at The Park Lane Hotel in Piccadilly, London on Tuesday night
Happy together: Pippa quashed rumours of a split by attending the charity gala hand-in-hand with her long-term boyfriend Nico Jackson, who she hadn't been pictured with since last year
The 31-year-old, who is an ambassador for the charity, wore a striking scarlet lace dress by CH Carolina Herrera to attend the important event with a matching slick of ruby lipstick and heels.
Carrying a box clutch and accessorizing with a wide diamond bracelet, the sister of the duch*ess of Cambridge wore her brunette locks in delicate curls which framed her pretty features.
Pippa arrived on the arm of her handsome boyfriend Nico Jackson, with whom she hadn't been pictured since last year. The pair have been pursuing a long-distance relationship after he moved to Switzerland for work.
Fancy seeing you here: The couple were joined at the event by Pippa's brother James Middleton and his girlfriend Donna Air
Family first: The couple, who have been dating for two years, spent the best part of the evening with Pippa
Loved up: She arrived on the arm of her partner, Nico, who looked incredibly dapper
Don't let go: The couple held tightly onto each other's hands as they made their way into the event
Tight squeeze: James, Donna, Pippa and Nico just about managed to fit into a taxi home together afterwards
Bonding: Donna and Pippa appear to have struck up quite the friendship
Future sisters-in-law: The women are extremely close and could one day become family
Ladies first: Nico seemed happy to let Pippa lead the way
Say cheese: The couple were happy to smile for photographer before heading into the venue
Once inside, Pippa caught up with her James and Donna, who wore an exquisite ice blue lace gown by Nevena Londonand heels.
Hosted by BHF celebrity supporter, Mollie King of The Saturdays, the inaugural Roll Out The Red Ball started with a champagne reception for 200 guests, followed by a three course meal.
Entertainment on the night includes a performance by a very special guest comedian, music and dancing, as well as an auction packed full of money-can’t-buy experiences and luxury items.
Special guests: Hosted by BHF celebrity supporter, Mollie King of The Saturdays, the inaugural Roll Out The Red Ball started with a champagne reception for 200 guests, followed by a three course meal
Lady in red: The pretty brunette turned heads in her floral lace dress
Heartfelt: Pippa talks about the importance of the charity on the BHF's website, saying: 'I was shocked to learn that nearly three times more women die from coronary heart disease than breast cancer'
Adding: 'I’m passionate about raising awareness amongst women of this killer disease and I look forward to working with the BHF to highlight to women the risks of heart disease and importantly, how they can reduce them'
Dress code: Donna got the lace frock memo and also wore bright red shoes
Cute couple: James and Donna linked arms as they made their way into the venue
Rare PDA: James nuzzled romantically into the side of Donna's face as they posed for pictures
Perfect fit: The duo cut a fine pair as they enjoyed their night out together
Mollie said: 'I’m honoured to be hosting the Roll out the Red Ball in aid of the British Heart Foundation. It is such a fantastic charity which is very close to my heart.
'My grandfather sadly died of heart disease. The BHF has already made vital discoveries in the prevention and treatment of heart and circulatory conditions but there is still so much work to be done.'
Mollie's dress had an extremely plunging neckline which showed off her assets and a sheer skirt detail which saw under a peplum waist.
Extreme cleavage: Mollie King of pop band The Saturdays showed off her incredible figure in a plunging black dress which had a sheer skirted detail
Big moment: Mollie is hosting the important event - it's a matter close to her heart as her grandfather sadly died of heart disease
All that glitters... Lady Victoria Hervey arrived at the event fresh soon after performing in television show, The Jump, in Innsbruck, Austria
Backless beauty: Sportswoman Louise Hazel, made it to the final of the reality show and showed up to offer her support
Double trouble: Made In Chelsea's Oliver Proudlock arrived with girlfriend Emma Louise Connolly
Made In Lovesville: The reality star planted a big smacker on Louise as they made their big entrance
Showing off flawless golden skin, Mollie drew attention to the red belted detail on her dress, with a slick of scarlet lipstick.
Pippa talks about the importance of the charity on the British Heart Foundation's website, saying:'I was shocked to learn that nearly three times more women die from coronary heart disease than breast cancer.
'I’m passionate about raising awareness amongst women of this killer disease and I look forward to working with the BHF to highlight to women the risks of heart disease and importantly, how they can reduce them.'
Hollywood glamour: Former Hollyoaks actress Ali Bastian wore her charity's trademark red colour
Fary tale: Classical singer Natalie Coyle also arrived wearing a green ball gown
A-listers: (L to R) Elizabeth Emanuel, Stuart Watts and Sonique stepped out to raise awareness
Working it: TV and radio presenter Lizzie Cundy shimmered in a Pia Michi number
Guest list: Richard Farleigh (L) and Duncan Bannatyne (R) were also present
Liquid refreshment: Michelle Keegan looked like she couldn't wait to pour herself a glass of wine
The ladies were in excellent company on the night with appearances from The Jump stars Lady Victoria Hervey and Louise Hazel.
Classical singer Natalie Coyle also arrived wearing a green prom-style dress, while former Hollyoaks actress Ali Bastian wore her charity's trademark red colour.
Talented soprano Natalie opened the event with a performance of a selection of classical opera tracks and pieces from much-loved musicals.
Made In Chelsea's Oliver Proudlock appeared to be feeling the love as he planted a big smacker on girlfriend Emma Louise Connolly's lips.
Fashion designer Elizabeth Emanuel and Sonique stepped out to raise awareness, as did Dragon's Den star Duncan Bannatyne.
Cute as a button: James and Donna made eyes at each other as they posed on the red carpet
Guest of honour: Charity ambassador Pippa took pride of place at the sit-down dinner
Having a ball: Proudlick looked like he was having a great evening at the plush event
Sitting pretty: Lady Victoria Hervey wowed in a sparkly silver dress
Lady in red: Mollie was the bell of the ball in red lipstick and and a scarlet and black gown
