The reality TV pair were seen enjoying a cheeky snog at a National Television Awards after-party a few weeks ago, and it seems that may have been the beginning of a budding romance...
After they were spotted smooching, Ricky admitted he didn't regret the kiss, describing Marnie as "lovely".
At the time, however, Marnie was thought to have a boyfriend.
But now, Ricky and Marnie seem to have confirmed they are very much an item.
The pair enjoyed a night out in Essex on Friday (6 February) and looked pretty smitten...
Sharing a picture together on Twitter, Ricky simply wrote: "Sugar hut with @marniegshore."
Marnie, meanwhile, posted a smokin' hot selfie before the evening kicked off and later took to Twitter to say: "Had the best night tonight @sugarhut thank you so much @micky_norcross had a right laugh see you next time."
On the night out, the pair were seen kissing each other passionately.
And Marnie, wearing a silky playsuit, looked pretty happy to be seen with the TOWIE hunk.
Ricky's long-term relationship with TOWIE co-star Jessica Wright ended last October.
Meanwhile, Marnie's relationship with builder Dan Slone had been described as very on-off.
Just weeks ago, Dan tweeted that he "loved" Marnie, but has since cryptically tweeted: "When you thought you knew someone..."
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