Last month, it emerged that the Branning cousins are to develop feelings for each other in a big storyline which will run across the autumn.
Witts has now told Inside Soap that the bond between the pair could become very serious.
He commented: "Joey's very much under the impression that girls are lucky to be with him. He doesn't really give them much respect.
"But with Lauren, there are real feelings. For the first time in his life, he falls in love with someone - but it's a girl who's forbidden. That's karma for you!"
Witts was celebrating last week after winning the 'Sexiest Male' prize at the 2012 Inside Soap Awards, having only been on screen for three months.
He added: "It's a real pleasure to be working here. Every day I remind myself how blessed I am to be doing a job I love."