Are you guys like actually related, like your dads/moms siblings child is her? If so if anything did happen it would be incest but I think its just because you guys have always been there for eachother that you feel like you guys like eachother because that's what you want in a partner and thats what you are for eachother. I dont know if I make any sense... Im only 16. No one posted asnd this is a difficult one to respond to so I was just trying to help.... hopefully I didnt just confuse you