We know that Heather Webber is much older than Sonny's lawyer Alexis Davis, Anna is younger than Heather, Kate Howard is younger than Heather because she talks about her every once in a while to Sonny and even her cousin Olivia knows about it.
What would Sonny do if he and his friends saw Heather Webber? Would he tell anyone to get rid of her or would he try to get rid of her with the help of his ex-lover Olivia?