The couple shared an adorable video from the beach at the private resort North Island on Sunday, just two days after Wilson proposed.
In the sweet waterside clip, Wilson called Ciara his "girlfriend," to which she responded, "nah."
"Fiancée sounds way better," Wilson, 27, said.
Wilson also shared the video on Twitter, adding the caption, "Every Morning, Every Night... I Thank God for you."
The couple then had a mini photoshoot on the beach, with Wilson getting behind the lens.
"#JackOfAllTrades," Ciara wrote of the athlete.
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The couple, who have been dating since last spring, are thrilled to be engaged, according to friend Niecy Nash.
"Oh my goodness, she's so happy," Nash told reporters at the PaleyFest 2016 Scream Queens panel in Hollywood on Saturday. "It's interesting because their love is palatable. You feel it when you are with them."
She also shared a sweet anecdote about the pair's love, telling reporters, "I remember, we were together right before the Grammy's and I said to Russell – I used to have a dressing room in the same row as Ciara at one point, she was on a show and I was on a show, but our dressing rooms were in the hallway – I said, 'You know, this woman has such a beautiful spirit.' His eyes just lit up. He was like, 'Yes, she does.' I just saw it all over him and all over her."
Nash added, "I love all of this... I'm just really, really happy for them. You know, it's right. After you've had some missteps in love, nothing feels better than getting it right."
Reporting by CHRISTINA DUGAN