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.
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