The lovebirds went along to the new Star Wars VIP opening at Madame Tussauds in London on Wednesday evening (13 May).
At the event, Lydia and Arg were joined by their co-stars Jessica Wright and Danielle Armstrong, and former TOWIE star Joey Essex.
The couple posed for a snap with Joey, who like Arg was wearing some special glasses for the exhibition.
Captioning the photo, Joey said: "Me ma boy @RealJamesArgent and the lovely @LydiaRoseBright."
Lydia looked effortlessly stunning last night and oozed sophistication in a gorgeous monochrome stripy dress.
The Bella Sorella Boutique owner had her blonde locks styled to perfection, and she gave her outfit the glamour factor by wearing lovely red suede shoes and a pout in the same shade to match!
Arg has just returned from Las Vegas, where he joined 37 other males - including co-star Elliott Wright and Big Reunion star Kenzie - to celebrate his best mate Mark Wright's stag do.
While Arg was enjoying the celebrations in Vegas, Lydia was back in Essex working on her summer body ahead of the cast trip to Marbella to kick off the brand new 15th series.
Childhood sweethearts Arg and Lydia rekindled their romance during the series 14 finale in April. Updating fans since their break from filming, Arg and Lydia recently revealed that they are now living together.
Lydia said she asked Arg to move in with her: "I presented him with a little jewellery bag, and he opened it and it had the key in it. We've known each other for seven years and I thought we should get a move on!"
While Arg is chuffed to bits, he said he was hoping to get a bit more wardrobe space!
He revealed: "We've moved in together, but Lydia still hasn't cleared out a single cupboard or wardrobe space for me."
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Arg's transformation: then and now