Please help. I have 2, 15 week old kittens which I have now had for the last two weeks. They are very healthy, friendly and playful. Last week they had their first vaccinations and were given a clean bill of health from the vet.

Since they moved in with me they have been using the litter tray fastidiously (or so I thought). Last night the boy kitten jumped up on to the sofa, where I was watching tv, sat on my feet and did a pee (obviously trying to tell me something)! I said 'no', picked him up and took him to the litter tray.

It was only then that I discovered that the bed I had bought them (they never sleep in it - always curled up on the sofa) was soaking with cat pee. It would appear that they are using the litter tray for poos and the bed for pees.

I have now disinfected the area and put the litter tray where the bed was in the hope of encouraging them to pee and poo in the same place. I have put them both in the litter tray to show them where it now is. Do you think this was the right course of action?

Ultimately they will be outdoor cats, but only after they've been neutered and microchipped, which won't be until February 2010. However, before I got them (at 13 weeks) they had been in a household of 12 kittens (2 adult cats gave birth to litters within a few days of each other) and were allowed to roam around outside from when they could walk. I get the impression they had a bit of a 'feral' existence before they came here. Am I expecting too much? What can I do to make them more at home?

Any thoughts and advise would be much appreciated.

Thanks.