The video's director, Lemoine, fuelled speculation the pair are an item when he described the natural chemistry between the singers last month.
He told MTV News: 'They seemed to be super close and that's what I wanted for the video.'
It's not the first time these two have dabbled with the idea of romance.
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She later admitted to US radio host Angie Martinez the smooch was just a one off, saying: 'We weren't really sure what it was. We just went out - my friends, his friends.
'I definitely was attracted to Drake, but I think it is what it is - like it was what it was.
'We didn't want to take it any further. It was at a really fragile time in my life, so I just didn't want to get too serious with anything or anyone at that time.'
VIDEO: Watch Rihanna and Drake get steamy in Take Care