Dawn Porter and Chris O'Dowd

Bridesmaids' breakout star Chris O'Dowd proposed to his girlfriend Dawn Porter.

"I'm so bored of all this happiness and sex. I'm getting married. #engaged," O'Dowd tweeted.

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Porter, a British television personality, also shared her excitement via Twitter. "I guess he liked it, coz he put a ring on it #engaged," she wrote.

O'Dowd and Porter, both 32, were on vacation on the British island of Guernsey when the Irish actor proposed.