I had a question about big bros and big sisters. I'm rushing in the fall and if I do get into this one sorority or choose this one sorority, I know who I would want to be my big sis, so as does she want to be my big sis (she's my best friend). Does this maybe mean that she will be?? And I also am getting close to this one dude from a fraternity, to the point that I told him that I would love it if he was my big bro... so he told me that he will do all that he can to make me his lil sis..becaz he said he'd be honored to have me as a lil sis. Will this work out to my favor

?? or is it depends who and what my big sis wants?