Rihanna and Drake reportedly kissed and cuddled during a night out at a Miami, Florida club on Tuesday (30Aug16).
The stars briefly dated in 2010, but they have been fuelling rumours they are an item again after spending an increasing amount of time together ever since recording their hit collaboration Work.
They have shared several steamy sessions onstage performing the tune live, both during Rihanna's ANTI World Tour and Drake's Summer Sixteen trek, and as he honoured the singer with the Michael Jackson Video Vanguard prize at the MTV Video Music Awards on Sunday (28Aug16), the Canadian rapper declared he had been "in love" with the Bajan beauty since he was 22.
They celebrated the occasion by hitting New York hotspot Up & Down after the Madison Square Garden ceremony, and enjoyed dinner together in the city on Monday (29Aug16).
Rihanna then joined Drake in Miami on Tuesday (30Aug16) for his next tour stop, and they were photographed dancing together during the concert afterparty at E11EVEN nightclub, where they reportedly made no secret of their affection for one another.
One onlooker tells E! News the stars "had plenty of one-on-one intimate conversations and there was plenty of PDA (public displays of affection)".
"Rihanna and Drake were happy, not hiding and totally affectionate in front of everyone," the source recalls. "At one point they were kissing and holding each other. They seemed very comfortable with each other. Besides for when he was performing, they didn't leave each other's side."
Another eyewitness adds, "There were several kisses. He had his arm around her all night. They never left each other's side. Even when she was sitting she was leaning on him. They looked like they were having a great time."
The rumoured couple even openly held hands in front of the paparazzi as Rihanna left the club with the rap star at the end of the night.
Drake performs a second concert at Miami's American Airlines Arena on Wednesday night (31Aug16).