Speaking about the striking Dolce & Gabbana model, the bubbly presenter described him as "a very good-looking friend" who she met while working in London.
"According to the papers, we've been romantically involved but I never talk about my personal life," she smiled. "But he's a gorgeous guy."
The Bray native -- who insists she is single -- talked about hitting the town in the company of the recently voted 'sexiest man in the world'.
"When we go out more men hit on him than hit on me," she laughed. "So, no, I'm not going out with someone that good-looking."
"I'm single at the moment. I just always end up seeing him at parties because London is like Ireland -- it's so small."
Speaking about her hectic lifestyle she describes how her jet-setting presenter's role interviewing A-list celebs and attending glitzy red-carpet events leaves her with no time to look for love.
"No man wants to be with me because I'm never there," she laughed. "Last week I was in Madrid. I've been to Dublin twice this week, so God loves the man who gets me."
"It's really hard. I barely see my friends. This is why I have to invite my mum and my friends to events and launches. I say, 'I'm going to be in Ireland from this hour to this hour can you come by and say hi?''
"I'm not lonely because I have really good friends based in Ireland and London and I'm always surrounded by people. So if I have a day off sometimes I just like 'Laura time'."
However, the MTV news anchor says she still enjoys a good flirt while interviewing music royalty.
"Interviewing is flirting because it's an unrealistic situation. You're sitting there for five minutes and you're asking personal questions so it's not like a normal conversation. It's kind of like [a speed date].
"So I even find when I'm interviewing girls it's like I'm flirting with them. I'll be talking to celebrities like Katy Perry and I find myself going 'Katy, you're hot' and I think 'oh, did I just flirt a bit?'"
Laura also reveals how she has turned down offers for revealing shoots because she isn't comfortable with showing too much.
"I posed for FHM magazine when I started. That was really cool but I was wearing a T-shirt and knee socks. I'm not a model, I'm Laura, so if I do something I'm very bossy and feisty and I'll never be put in a situation that I'm not happy with.
"In saying that I don't think anyone wants to see me in full lingerie," she laughed. "I've been asked to do a few things but I turned them down. Just because I didn't want to do it. You need to be in control of the situation, never let anyone do something you don't want."
The 25-year-old beauty was speaking at the launch of the Forever 21 store in the Jervis Street shopping centre where she was showing off her skills as a DJ for the official opening of the new store.
- NIAMH HORAN Entertainment News Reporter
Read more: http://www.independent.ie/lifestyle/independent-woman/celebrity-news-gossip/im-not-dating-worlds-sexiest-man-insists-mtv-beauty-laura-2419431.html#ixzz16wc3HGN5