Kylie Jenner and Timothée Chalamet stole the show Friday night at the Berlin Film Festival … where both wore eye-popping fits … and showed they’re clearly mad for one another.

There for a special screening of “A Complete Unknown” … TC proudly rocked a candy pink outfit from head to toe … which included a pink tank that he displayed when he threw his jacket off for the cameras … in the frigid weather!

It’s also worth noting that in addition to giving the photogs what they wanted … TC was also great to his fans — stopping to sign a slew of autographs.

As for Kylie … she stunned in a skin-tight black sequin gown … which created some serious cleavage.

But, the highlight of the night was right before the film started … and the audience roared for Timothée — as Kylie beamed with pride and touched his face in a loving manner. After the cheers subsided … TC whispered something into her ear that made her smile.

Timothée has been making his rounds on the award circuit in the lead-up to the Oscars … where he is nominated for best actor for his portrayal of Bob Dylan in “A Complete Unknown.”