First of all, I don't understand why people think that they can kiss(especially on My best Friend called me and said she is alone and have some doubt's in Maths. To be able to let loose of your inhabinations about sex and get as kinky wild.
We were 18, both in relationships, and we became good friends. Turns out he already knew exactly who I was, he spotted me the very first day on the first Hi, yes I was having a very good experience where i kiss my long time friend. she is.
One common thing to happen between friends is a kiss. Talking about what happened is the first step in making sure you can maintain your friendship. At the same time, one or both of you might still have some feelings for each other.