There's something that leads us to believe that Ariel Winter is a HUGE Kylie Jenner fan ... and by HUGE fan, we mean SWF doppelganger-ish, serious style crush kind of fan.

We spotted the Modern Family actress out at the hair salon, trimming a few inches off her black bob just two days after Kylie ripped out her extensions and went dark. But that alone would be little proof ... so we've got more. The belfies, the boxer braids -- all in the style of Kylie and Ariel's Instagrams always follow Kylie's.

If imitation is the sincerest form of flattery, then Kylie must be feeling pretty good about Ariel's affection!