Demi Lovato and Wilmer Valderrama are still going strong and they're happy to show it.
The couple's been together since 2010 when they met on the set of a PSA for Voto Latino. Lovato said they've been together ever since.
She brings 23 to his 35 and she's not shy about marriage ... she said she'll walk down the aisle for the asking ... she even has part of her wedding planned.
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