I have similair issues with Abby,who likes to pee on herself, cause she doesnt squat down far enough in the litterbox , and who like Cole has a very fluffy behind.
I am actually gonna bathe her today, and try to about every 2 weeks, as she gets a bit smelly back there. (sometimes we call her Miss Peebody.. lol )
I try to cut the fur back there as much as possible, but she doesnt co-operate very well.
I am very fortunate that I can give Abby a bath , and she likes it.