The soon-to-be husband and wife hosted an engagement bash at Pearl at Nikki Beach in Miami Saturday night, with an after-hours party with family and friends.
After attending the Reid & Fiorentino Call of the Game dinner – which the Being Mary Jane star hosted – at the Seminole Hard Rock Hotel and Casino in Hollywood, Fla., she and the Miami Heat baller arrived at Nikki Beach around 12:30 a.m
"They arrived with a big group of family," a partygoer tells E! News.
The bash had a white theme, with the servers and the décor in all white. Wade and Union also coordinated with the venue's set up, with the actress rocking a black top and long white skirt, and Wade wearing a white shirt and grey pants.
"They seemed really in love," the partygoer continued. "He had his hand on her side all night. The party felt very intimate. They spent a lot of time talking to family members."
Kelly Rowland was also in attendance at the event, and the DJ gave shout outs to Jamie Foxx and Kevin Hart as well.
Before heading out at about 3 a.m., the couple and their guests nibbled on white cake, and sipped champagne and Grey Goose cocktails.
Once the festivities were over, Union posted a cute shot on Instagram of them walking into the party, followed by a collage of snaps from the fete. "You know it's a good time when Pops is turnt is the club... #pearlchampagnelounge#ohmyleg#noYOUtellmydadhesbeencutofffrombottleservice," she wrote.
Wade recently got emotional on Instagram about his ladylove, posting a picture of her along with the caption, "My #WCW my #beautifulblackqueen…My life mistakes gave me you and my life mistakes almost made me lose you. But your love has conquered all and I hope to spend the rest of my life with you…"
Around the same time they announced their engagement before Christmas last year, the baller revealed he had fathered a son outside of his relationship with her.
"I had a time, a part in our break, in our pain and our hurt, a blessing came out of it in my life, having a son that was born healthy," the 32-year-old athlete told reporters at the time. "So I'm moving on."