(TMZ) -- Finn Wolfhard aka Mike on "Stranger Things" might've been his co-star Millie Bobby Brown's official first kiss, but she wasn't his.
TMZ got Finn at LAX Friday where he told TMZ about the first time he puckered up all the way back in kindergarten! As for kissing Millie -- Finn says it's all in a day's work.
TMZ also asked him about Ali Michael, the 27-year-old model who got skewered on the internet for asking Finn to hit her up in 4 years when he's legal. Finn didn't sound too into it.