She explained: "He's really funny. He made me laugh straightaway. He doesn't take himself too seriously, I wouldn't like it if he was a poser.
"He takes the mickey out of me all the time and how tiny I am. He's used to working with model girls who are all 5ft 10in so he's always like, 'Aww, you're so cute with your massive heels."
The blonde beauty - who split from long-term boyfriend Andy Brown in February - also admitted she has never seen David looking bad, which makes her worry about her own looks.
Mollie added to Fabulous magazine: "David and I are having a lot of fun. He's just as good looking in the flesh. He's a very good looking guy so I've never seen him looking bad.
"He wouldn't be able to say the same of me I'm sure!"