Seann William Scott is marrying model Lindsay Frimodt.

The American Reunion actor proposed to the Victoria's Secret beauty on Valentine's Day, this February.

"Seann asked her to marry him on Valentine's Day and she said yes," a source close to him said.

The 35-year-old star may be reprising his role as womanizing, sex-obsessed Steve Stifler for American Reunion - the fourth film in the American Pie series - but has distanced himself from the hard partying character in real life.

"I have a girl in my life. I was never really able to take advantage of being an actor, because I was always too shy to talk to girls," he said.

Seann also admitted many fans of his iconic alter ego are upset when they realise he is nothing like him: "I walk down the street and someone's like, 'Hey we'll buy you a shot.' And I'm like, 'No, I'm OK.' They're so crushed, like 'What? But you were in American Pie.' I say, 'It's a movie.'"

Seann - who has previously been romantically linked to actresses Jaime King and January Jones - voluntarily admitted himself to rehab last year for "health and personal issues."

"He completed the 30 days successfully - he's doing great. Seann dealt with an issue and hopefully he can do American Reunion and re-energize his career. American Reunion will be released this Spring."