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Seth Rogen has finally popped the question to longtime girlfriend, writer and actress Lauren Miller.

The couple, who are both 28 have been dating since 2004 -- long before Seth found fame in films like Knocked Up and Superbad.

Seth and Laura had been together so long "She'd started giving up hope that he would ever pop the question." But a pal tells Life & Style, "He surprised her with the proposal" last week.

Congrats to the happy couple!