What started out as an innocent question turned into so much more!
Ch-ch-check it out
Waaiiitt, wait, wait.
The pair were spotted clutching paws in Paris on Sunday evening (above), but they were also seen getting HEAVY into the PDA at Roissy Airport the same day — at one point she even has her head nestled face first into his crotch…
AND Mary Kate was wearing a sparkly ring on her left hand's tell-tale finger!!
Could Mz. Olsen be plunging into the deep sea of marriage with her 43-year-old lover?!
Well, congratz (we guess?!) if these two ARE gettin' hitched! But we somehow think Mary Kate is simply fond of diamonds.
And $55,000 pill backpacks.
[Image via Splash News.]