When is Enna and Finn's first kiss in the book Enna Burning by Shannon Hale?

their first kiss of cheeks of enna is when isi and enna go to Yasid where there are fire worshippers and then they get into a traffic jam with Sileph a bad guy but then Finn comes to the rescue and saves isi and enna then kisses Enna on the cheeks and hair and i think for lips its when isi and enna combine their powers so they won't be hurt because of all their power building up i think that was a not really dramatic seen because Finn said i thought somebody was going to have to die and then Enna xsays that he bet it would be him to sacrifice hiself and then he said that out of all three of them including Isi he would sacrifice himself and then enna said she was just kidding and then kissed him