If you are an older teen and this is not your first cousin, then kiss them back. One kiss does not mean you are going to get married and have strange looking kids. My brother dated one of our cousins for a while. It was like having any other gf. They even played strip Poker with some of the other cousins at an extended family weekend. The only thing that happened was that we proved that the identical twins in the family were truly identical.
You should tell her, they should be ok with it because they are not in love with their cousin and plus if she is really your best friend it will be cool with her.
Just say it. It is your cousin, not your lover. It is his best friend, not his pole smoker...
You have to tell them
Let your friend now he has to tell how he fells about her
don't tell them! Unless asked
If he touches you a lot flirts and stuff like that.
No my best friend is Chris Evans cousin she would tell me if she was related to him too
If your friend is your cousin's cousin's cousin, that make the two of you friend who might, or might not, be distantly related.
You either tell them you are not interested or you let them do it. The choice is yours, not theirs.
Tell her to slap dat pig.
Don't touch it with a ten foot pole.
tell your friend that if she is in love with her cousin tell he try to find out if that is her real cousin and if he or her should date him but if it is her cousin give him a big kiss then kiss him or her a few more times then if he or she wantes more give him or her more than leave him or her than you will get to fall in love with your cousin. holla