We don't really have that rule in our chapter but it is something to keep in mind. For example my boyfriend and I have been going out for 2 years and it would be very uncomfortable if we broke up and he started dating one of my sisters or if I started dating one of his brothers. In our sorority we simply say, you wouldn't wear someone else's dirty laundry, would you?
[This message has been edited by Siobhan (edited June 27, 2000).]