The 33-year-old actor - who wed TV presenter Dawn Porter earlier this year - does not feel he is deserving of his new-found status as a ladies man since appearing in romantic comedy 'Bridesmaids' and thinks he will only be good looking when he gets much older.
He said: "I'm far less appealing in real life. I really don't know what to say about it.
"Look, I've never been lavished with female attention. My mother used to say, 'You just haven't grown into your face yet.'
"When I hit 60 I'm going to be a real stunner!"
However, in order to turn away the advances of women, he is playing a "d**k head" in his next three films.
He told Time Out magazine: "I'm a bit of a d**k head in my next three or four films. That's how uncomfortable I feel with female attention. I'm basing my career on stopping it."