Two girls kissing at lips very deeply... is that normal...?

ummm it is called lol well i am guessing if there attracted to each other something else....dont freak out and dont tell tehm you saw them see how they act and then ask them to play truth or dare and ask them if they have ever kissed the same and if so who and if they look at each other. them well just be like i know you all was kissing or something...good luck and if there attracted to each other than yes it is normal.