Joshua Jackson and Lupita Nyong'o clearly don't want anyone to know they're spending a whole lotta time together - going to great lengths to avoid being snapped together during a joint grocery run.

The Oscar winner made a valiant attempt - albeit unsuccessfully - to duck out of view when arriving with the "Dawson's Creek" star to Erewhon in L.A. Monday. Lupita ducked in the passenger's seat, but was still spotted.

Despite their foiled plan, Joshua continued to maintain the illusion of a solo outing as he headed into the store first ... with Lupita following suit minutes later.

While the pair have yet to confirm their relationship, their shenanigans suggest their relationship is beyond friendship.

Joshua and Lupita have known each other for years … with their connection seemingly heating up in October at Janelle Monáe's concert.

While there was no PDA at the show, the outing raised eyebrows … especially considering Lupita called it quits with her BF, Sal Masekela, the same day … and swiftly deleted all traces of him from her IG.