(SEATTLEPI) — Michael Phelps has taken the plunge and gotten engaged.
The 18-time Olympic gold medalist announced on Twitter he's marrying Nicole Johnson, who was Miss California in 2010 and has dated the swimmer on and off the past few years.
Phelps tweeted early Sunday: "She said yes." He also posted a photo of the couple, hugging in the snow, taken by teammate Allison Schmitt.
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Phelps sister, Hilary, wrote on Facebook, "CONGRATULATIONS to these two lovebirds on their engagement! Couldn't be happier for my brother and thrilled to gain a sister, who I adore and love already!"