Mark
Mark would be a little taken back, because you kissed his cheek in front of the other members, but would giggle and look down hiding the fact that he's blushing.
Haechan
Haechan wouldn't be embarrassed at all, he would be more cocky than anything.
Jaemin
Would be the same as Haechan, but Jaemin would kiss you back on the cheek. While you blush, giggling at how much you love him.
Jisung
This poor boy would blush so bad and be so embarrassed. Only being 16 he had never been kissed on the cheek by a girl.
Renjun
He would be confident about your relationship and would think to himself 'how do I have such an amazing girlfriend'.
Jeno
Would be so giggly after you would kiss his cheek. Jeno would grab you and giggle into your neck saying 'I love you'.
Chenle
He wouldn't know what to do, you really hadn't shown this type of affection yet in your guys relationship, so he would shy ask why you kissed his cheek.
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First Reaction!!
Hoped you enjoyed!!