They've left tongues wagging after posting a series of intimate Instagram shots together.
And Chris Brown further fueled rumours of a rekindled romance with his ex-girlfriend Rihanna by posting a black-and-white picture of the pair enjoying smoke-filled fun times on a couch Sunday morning.
In the candid snap, the 23-year-old singer has a hand-rolled spliff in his mouth as clouds of smoke billow around the 24-year-old pop star who revealed her bare midriff while enveloped in a large camouflage coat.
Meanwhile Breezy, whose brutal assault on Rihanna in 2009 left her hospitalised, was dressed casually in a baseball cap and white t-shirt.
The noted marijuana aficionado publicly has flaunted her love of herb.
Last summer, Rihanna was seen wearing a 'how-to-roll-a-joint' t-shirt while grabbing late-night munchies at Giorgio Baldi.
She also tweeted a picture of herself holding a joint wrapped in colourful, patterned rolling papers.
Back in May, the You Da One hitmaker posted a bizarre photo on her Instagram of a woman smoking a joint so enormous it required three women to hold it up and a fourth to light it.
'Why she suckin on my soul mate???' tweeted the singer, who has called reggae legend Bob Marley her 'hero.'
And when photos of the We Found Love singer appearing to roll a marijuana blunt on her bodyguard's head emerged from the Coachella Music Festival in April, she irreverently addressed the snaps by tweeting, '@rihanna ran out of f***s to give.'
Meanwhile Brown just reactivated his Twitter Sunday after shutting it down following a Twitter war with comedian Jenny Johnson, but he's opted to use his Instagram instead.
'I used to use my Twitter account to vent, but now I mostly use it for marketing and promotions,' the Grammy winner recently told XXL.
'Even if the media asks me something, if it’s cool then it’s, "What’s up?" But if it’s anything that’s too negative, I don’t care to respond.'
Brown then added, 'In the beginning, I used to be hot. I’m normal. I’m human, so if anybody says something that’s a lie, I’m numb to it. I’ve smartened up.'