Last night (15 June), viewers watched as The Others were allowed to enter the main house while the housemates were sleeping. As part of this week's spook-themed shopping task, they were instructed to leave their mark on the house and unnerve the housemates.
They chose to write certain phrases across each housemate's picture, and across Marco's it had said: "Marry me?"
Reacting to the comment left on his picture, Marco said to Lateysha Grace: "They put, 'Marry me?' on my picture, that's a bit too much. If they break me up with my fiancée that's f**ked."
Latyesha responded by saying: "I think if anyone broke up things with your fiancée, it's down to you. Do you know what I mean?"
Fans had watched steamy scenes of Marco and Laura kissing and in bed together recently, with Laura confirming on last night's show that she and Marco had sex.
Walking out of the bedroom, Marco hit back at Lateysha: "I had a hall pass, ok?"
On entering the Big Brother house, Marco suggested that his fiancée Kim had given him permission to get close to someone else while he was on the show. As his relationship with Laura heated up inside the house, Marco reassured her that he is in an "open relationship."
Kim, however, has denied that is the case and took to Twitter to say: " "Fyi I said #hallpass NOT open relationship. I don't watch bb, but I heard this today. Worst thing I can't even talk to him #bbuk #bbmarco (sic)."
In a conversation with Lateysha, and later her housemates, Laura confessed to having sex with Marco when they were in bed together.
She said: "It wasn't full blown sex, but we had sex, basically. Straight after it happened he said 'OH MY GOD! What's my family and my fiancée going to say?'
"I was like mate, 'You can't say this now.' I think he feels guilty."
She said she felt like her co-star had now "washed his hands" with her, prompting Lateysha to question whether Marco was really given a hall pass and tell Laura she felt sorry for her.
Laura then added in the Diary Room: "It doesn't mean I'm a home wrecker. I know the girl code, if a girl's got a boyfriend you would never get with that guy.
"Marco should start getting a bit of stick, he's the one who is in the open relationship and told me he is. When I leave this house the truth will come out, I really hope he hasn't lied to me."
Marco's fiancée has so far not commented on Laura's admission about the pair, but when Marco recently suggested he wants to be single, she appeared to respond.
Kim had tweeted: "Nothing like being with good friends and having a fashion show to go to, to take your mind off things. @gavinodivino @alexjames2nd thank you."
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