Britney Spears' Sister Jamie Lynn is Engaged

It looks like the Spears family will be getting new in-laws after all.

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Jamie Lynn Spears, 21, announced her engagement to boyfriend Jamie Watson, 30, last night via Twitter.

"Guesssss what??????" Spears tweeted along with an Instagram photo of her and her new fiance.

This news comes less than two months after Jamie Lynn's big sister, Britney Spears, ended her engagement to former agent Jason Trawick.

Jamie Lynn and Jamie Watson have reportedly been dating for three years. This marks Jamie Lynn's second engagement, as she was previously betrothed to Casey Aldridge, the father of her daughter Maddie, 4, but they split before they said "I do."

After making the initial announcement, Jamie Lynn returned to Twitter, posting a close-up shot of her new sparkler along with the caption: "He did good."