The TOWIE star uploaded the shot to Instagram on Thursday morning (10 October), adding the caption: "Where it all started #ibiza2013."
Lucy's picture came after TOWIE fans saw her opening up on last night's episode about how she and co-star Tom first hooked up.
She said: "In Ibiza months ago, it was my first night and his last night and we bumped into each other and had the most mental night. There was just something there. I don't know what it is and it's annoyed me that everyone has found out. The nice thing about it was it was a little secret we were seeing each other and it was fun, and now everyone is talking about it, exploding it and making us boyfriend and girlfriend."
Later on in the episode, we saw Tom telling Lucy - who previously dated co-star Mario Falcone - he didn't want to "creep around" any more, before they shared a kiss at a club.
"It's early stages for you and me. A lot of s**t happened between you and Mario... As long as it's done, it's done. In Ibiza I said I'd treat you as a princess."
But after that sweet moment between them, Lucy had a bit of a wobble, getting tearful as she told Sam Faiers despite her history with Mario, she still loved him. She said it was only now, six months after their split, that what happened between them was really hitting her.
"At the moment I have no self-esteem at all," she said. "I hate myself, I feel like crap all the time."
Despite that, she seemed happier at the end of the episode, kissing Tom on the dancefloor on their final night in Las Vegas.
Will this romance last back in Essex? We'll have to tune in on Sunday to find out!
Check out some pictures from the TOWIE gang's trip to Vegas below!
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