Kitty1 - my original stray cat, very playful/active, loves people,
hates being pet, bites, can draw blood if too aggressive with petting
or holding, spayed and shots
Kitty2 - new cat, stray, extremely peaceful and loving, spayed & shots

I kept the new cat in a room for about 3 days after getting her
fixed.  I introduced them slowly.  My original has been pretty
aggressive toward the new cat, but has started to chill out a bit.

Here's what I have done
- Kept the new one separated in a room w/ own litter & food
- Introduced them slowly in terms of amount of time the new cat is
outside of her room.

What has gone wrong
- My cat sniffed and "sprayed" clean laundry on an old couch.  I
believe the new cat peed there first. (just a guess)
       - Most of the pee was on the laundry, i washed and bleached
the laundry (whites) and cleaned the couch (no pee really) with
         a pet stain cleaner.
- New cat peed on my bed spread on my bed.  Luckily I had the mattress
wrapped in plastic.
       - I washed everything twice and bleached it as well.

Why I think the peeing occurred - purely hypothesis
- Both times I took the cat into a new part of the house without
letting her explore it by herself.  Also, my original cat was still
pretty aggressive at this point.

Since the things that went wrong, I've made sure to babysit them more
when the new cat is out as well as let the new cat explore, not force
her to go somewhere in the house.  I'm fairly confident those are the
only two peeing spots that happened (luckily not on the carpet) since
I scoured the house with a black light and didn't find anything.

My main concern is with the peeing.  They're starting to get along
better now - very little hissing.  My house is new construction that
I've lived in since April.  So, it's not due to a previous owner.  I'm
really hoping the two incidents were isolated and caused by my mistake
of forcing the new cat into unexplored areas of the house.

Any input is appreciated, I really don't want to have to get rid of
the new cat or for my old cat to for a bad bathroom habit.  I've never
had problems with this in the past.

Thanks,
Paul