What would you think of this (females only please)?

well imagine that you are walking with your friends, you (a female) your friend (a female) and your other friend who you are together as in boyfriend and girlfriend. all are thirteen except for the male friend. while you are walking your female friend looks down at your boyfriends lower area and notices he has become erect or maybe has a ***** as some would call it. now before she notices this you have kissed him for a time of 10 seconds straight without stopping and your friend was trying to move his hand over your lower backside. would you be embarred about this or would you think of it as sorta a funny story. or would you be maybe careful about what you do from now on. Just as extra Information, I don't mean to be comedic or inappropriate.