Lydia and Bobby were joined by co-star Jessica Wright on Wednesday (5 August), where they spent the day filming.
Posing with Bobby, Lydia said: "Love this boy, such a gentle soul. #Late #Night #Secret #Project."
While the project remains under wraps, one thing we do know is that they had to look their best, which involved topping up on their tans!
Lydia shared a photo of the trio, saying: "Late night secret projects with these two. Note to self, I really must tan more."
We wonder what this "secret project" is all about? Intriguing...
TOWIE's 15th series wrapped up two weeks ago and the cast now have a break from filming. While many have already taken advantage of their free time - with Lydia going to Ibiza - Jess is preparing to head to Las Vegas in just over a week.
Not letting her broken wrist get in the way of a good girly holiday, Jess will be jetting to Vegas with co-star Danielle Armstrong and some friends.
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