Model Katie, 20, shared a Snapchat on Tuesday (12 July) showing what happened when she and wrestler Adam, 24, did a bit Face Swapping while at dinner with the Love Island cast and crew.
Katie and Adam finished fourth in Love Island during Monday night's (11 July) finale, which saw Cara de la Hoyde and Nathan Massey crowned winners and take home the £50,000 prize between them.
Katie and Adam were the newest coupling at the villa ahead of the finale.
After arriving late, Katie initially coupled with marketing manager Sophie Gradon, 30, but that fizzled out when Sophie feared she was putting her relationship with boyfriend Tom Powell, 24, at risk, so cooled things with Katie, leaving her feeling hurt and confused.
Sophie then quit the villa to be with Tom, leaving Adam free to make his move.
And it worked! They shared a kiss during their first date and cosied up in the hideaway, although Adam turned down the chance to have sex as he didn't want to jeopardise his WWE dream by doing the deed on TV.
Katie and Adam were the only couple out of the four final couples not to be official, but they both seem excited about exploring their relationship outside the villa.
"When I came in here, I was confused and nervous about feelings and I didn't know which way to go," said Katie.
"I don't regret the journey I've been on in the short time I've been here, but when Adam gave me the chance to get to know him more, that meant a lot to me. I'm coming out of here with a smile on my face, and that's because of you."
Adam said: "I came into Love Island open minded. As you all know, I didn't have the best of luck. Although I had numerous opportunities to get to know different girls, I knew that they weren't right for me and she was the egg in my bag of Haribo. I'm excited to leave Love Island with you and continue the rest."
Love Island's finale airs 9pm on ITV2.