We honestly could care less about what Drake and Rihanna are doing together in their spare time. However, for those of you that do (whether you want to admit it or not), Rih Rih rubbed her cakes all up on Drizzy during a Would You Like A Tour concert in Paris, and there is footage.
Rihanna and Drake got it on last night in Paris ... in front of 17,000 people ... grinding on stage to their duet "Take Care" -- and it's all on video.
As we reported, Drake and Rihanna have been inseparable in Paris since Drake flew into town this weekend for his tour, getting dinner, hanging out at nightclubs ... even crashing together at the same hotel.
And the chemistry on stage last night is undeniable -- take a close look at Rihanna's face.
There's no way she's acting either ... because she sucks at that.
The question now is, will Chris Brown react or nah?
Check out the clip below.