Greetings!
I am hoping someone can offer assistance with a problem developed by my mum's oldest cat, an 11 year-old neutered male Maine Coon. Puss has begun to have intermittent bowel problems, which is not only frustrating for him, but also for the humans in the household (as a pregnant woman, it's vexing for me to have to ask someone else to help clean the cat's mess, and doubly so when I'm the only person home). Most of the time he defoecates in the litterbox, but occasionally will just let go wherever he happens to be. He also occasionally experiences very loose stools, and when this happens, even if he's defoecated in the litterbox, he will remove himself to a carpet and scoot his rear over the floor covering. And finally (as if that wasn't enough, poor Puss!), he only covers his foeces from time to time - and my goodness, do they reek!
Factors that may come into play: my mother also owns an 8 year-old female Maine Coon (Molly). We feed them Fancy Feast, a half-tin each every morning and evening, but Puss usually scarfs half of Molly's. They also have unlimited access to dry food (Whiskas, usually) and fresh water. Puss is quite large, though I understand this may be normal for an older neutered male. He weighs about 12-15 pounds. Molly is quite slight, weighing in at perhaps 7-8 pounds. Neither cat is an outdoor cat, but apart from my room and the soon-to-be nursery, they've the run of the house.
Any suggestions are welcome. Thanks! 
