Model Miranda Kerr finally said yes. The 33-year-old is engaged to marry Snapchat co-founder and CEO Evan Spiegel.She made the announcement on her Instagram account — using a Snapchat filter — on Wednesday, with a photo of a diamond ring and the caption “I said yes!!!”This will be the second marriage for Kerr, who was previously married to actor Orlando Bloom. They have a 5-year-old son together.Spiegel, 26, has never been married. He co-created Snapchat when he was a student at Stanford University.