They announced they were expecting their first child together in February. And Stacey Solomon looked radiant as she showcased her blossoming baby bump during a 'very rare night out' with her beau Joe Swash on Thursday, as the couple attended the Champneys Charity Gala for Stand Up To Cancer. Known for their humorous repartee, the two lovebirds showered each other with affection while striking amusing poses at the London Marriott Hotel Grosvenor Square in Britain's capital. Adorable: Stacey Solomon looked radiant as she showcased her blossoming baby bump during a 'very rare night out' with her beau Joe Swash on Thursday, as the couple attended the Champneys Charity Gala for Stand Up To Cancer Stacey, 29, oozed glamour in a shimmering black floor-length gown, with the one-shouldered design showcasing her slender frame. The Loose Women presenter displayed her flawless pregnancy style once again in the dazzling frock, which featured a cinched waist detailing and a flowing skirt. She complemented her beautiful features with mascara and a soft pink lip, while her brunette tresses were worn in a loosely-waved style. Charming: Looking as effortlessly stylish as his partner, Joe, 37, teamed a crisp white shirt with a dapper black blazer and formal trousers Radiant: Stacey, 29, oozed glamour in a shimmering black floor-length gown, with the one-shouldered design showcasing her slender frame Stylish: The Loose Women presenter displayed her flawless pregnancy style once again in the dazzling frock, which featured a cinched waist detailing and a flowing skirt Beauty: She complemented her beautiful features with mascara and a soft pink lip, while her brunette tresses were worn in a loosely-waved style Letting her elegantly demure outfit do the talking, Stacey kept her accessories to a minimum, opting for dainty pearl earrings. Looking as effortlessly stylish as his partner, Joe, 37, teamed a crisp white shirt with a dapper black blazer and formal trousers. Joining the loved-up couple was a host of famous faces, including Piers Morgan, Denise Van Outen, and Kristina Rihanoff with partner Ben Cohen. Fun times: Known for their humorous repartee, struck amusing poses at the London Marriott Hotel Grosvenor Square in Britain's capital Beaming: The two lovebirds showered each other with affection for the cameras All in the details: Letting her elegantly demure outfit do the talking, Stacey kept her accessories to a minimum, opting for dainty pearl earrings Ahead of the ball, the mother-of-two shared a sweet snap of one of her sons helping her zip up her party outfit. The emotional star wrote on her Instagram account: 'He’s had my back and melted my heart from day one. 'Had a little cry after I took this for no reason whatsoever other than the overwhelming love I have for my babies.' Spotted! Joining the loved-up couple was Denise Van Outen, clad in a plunging chic polka dot frock Loved-up: Former Strictly Come Dancing professional Kristina Rihanoff and her partner Ben Cohen looked equally fashionable for the outing Work it! The dancer posed up a storm in a off-the-shoulder blue jumpsuit with black high heels Elegant: The blonde bombshell added a glamorous makeup look to complete her ensemble She added: 'Helping mummy get ready for a very rare night out with @realjoeswashy raising awareness and money for @standup2canceruk @cr_uk with @champneysspas.' Meanwhile, Stacey broke down in tears as she discussed her baby news on Loose Women, just hours after she announced she is expecting her first child with boyfriend Joe - her third overall and his second. Speaking on the ITV show about why they kept their news secret for so long, she said: 'We felt it was important to keep it for ourselves until we felt really safe, and that first and foremost, we didn't find out until a certain point... Dapper: Piers Morgan (left) and Roman Kemp both donned sharp suits for the occasion Bosom buddies: Lizzie Cundy and Anthea Turner were all smiles as they posed for the cameras Looking good: Lydia Bright looked sensational in a black gown, while Bobby Davro (right) also opted for an all black ensemble All smiles: David Seaman and wife Frankie Poultney both looked elegant for the star-studded outing Colourful: Not one to follow the crowd, boxing legend Frank Bruno opted for a bright blue suit and pink polka dot tie 'Then we had to let our family know, and then there's that when you think it is the right time to tell people you kind of want to keep it just ours.' Sharing a snap on Instagram of her ultrasound earlier that day, she added a caption reading: 'Every time I go to write anything I sob so... what he said', referring to Joe's emotive statement on his social media. Joe shares son Harry, 11, with ex Emma Sophocleous while Stacey is mother to Zachary, 10, with Dean Cox and Leighton, six, with Aaron Barham. Parents-to-be (again): In February, Stacey broke down in tears as she discussed her baby news on Loose Women, just hours after she announced she is expecting her first child with Joe Family of six: Joe shares son Harry, 11, with ex Emma Sophocleous while Stacey is mother to Zachary, 10, with Dean Cox and Leighton, six, with Aaron Barham (pictured) Joe was brought on to Loose Women, where he added: 'It's brilliant I'm really chuffed it's just nice to have the secret out... 'It's been quiet for so long and we're so excited, it's nice we can breathe a little bit and let people know, my sister's just had a baby so we've been cooing over this.' The excited actor added: 'We've both got children, two different lives going on sometimes so this child is going to tie up the family... 'My kid and yours are going to feel like part of a big family, it's such a lovely family, we look after them now and they can look after us later.' Baby scan: Sharing a snap on Instagram of her ultrasound last month, she added a caption reading: 'Every time I go to write anything I sob so... what he said', referring to Joe's statement Shocked: Earlier this month, Stacey revealed she won't take maternity leave because the self-employed star wouldn't get paid if she didn't continue workingAll rights reserved for this news site dailymail and under his responsibility