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."
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."