Lewis' mum Claire is the latest guest in the CBB house as part of this week's shopping task, which challenges housemates to complete easy challenges without being distracted by their loved ones.
Ex-TOWIE star Lewis' task was to take messages for Big Brother in a special room. Easy? Uh, not really when you have to answer the phone, fax machine, door bell, television messages and even a pigeon!
One visitor at the door was his mum Claire, who gave Lewis a HUGE hug!
During a break from answering messages, Lewis told her: "[Me and Marnie] have so much fun and giggle and laugh all day. I feel really sorry for everyone else. We must be irritating them."
Claire's firmly Team Lewnie, telling him: "Say hello to Marnie for me. She's gorgeous. Tell her she's beautiful and she needs to know that."
Just before Claire leaves, Lewis then drops a bombshell that Marnie could be The One!
"Remember when you cried in Paris?" asks Lewis. "You said you wanted me to find someone who loves me for who I am. I think she's The One."
Lewis and Marnie have been inseparable in the house and have both admitted to falling in love with each other during their whirlwind romance. They've faced accusations of a showmance after it emerged they both have the same agent, but Marnie's cousin, former Geordie Shore star Sophie Kasaei, has denied this, saying it's real and genuine between them.
Lewis faces eviction on Friday night's show against Bear, James Whale, Sam Fox and Ricky Norwood. Two of the housemates will be going home in the first double dumping of the series.
CBB airs 9pm on Channel 5.
Watch Lewis' mum enter below!