i broke up with my ex 4 months ago and i got on well with her sister and about a month ago i bumped into her and well we've been texting each other quite.
My ex was very feminine and her sister is more of a tomboy cool girl. My ex's sister and I have been talking the entirety of the 4 years too and we're.
No dating your ex sister is never a good idea because you ex is going to tell her sister ever thing about you and dating her sister may not end well for you.
Even though your ex now lives in another state, keep in mind that dating her sister means that there's a good chance that you and your ex will.