Is this a parasite?

Question

So, I was playing outside in the back with my dog, and then I got out in the front, keeping the dog in the back, and I start petting the stray cat who we feed here.

Then, I noticed something with beige-like color sticking out of her youknowwhat, and it was squirming and all. Then when she sat down, it fell out, and I collected it and put it in a little plastic container. Could it be a parasite? I made an image to describe what it looks like and how it moves and all. Here's the image.

http://i38.tinypic.com/1z5oim9.png

Answer 1

the cat has worms and need some worming tablet,which you can get fro a local pet store or vets..dont buy the johnson brand they just make the worms lay dormant and do not kill them,this was told to me by a vet 18 yrs ago when my dog had them..

Answer 2

the cat probably has tapeworms. Segments fall out of its rear hoping to find another host. Just buy some worming tablets and give it to the cat and your dog (because he might have got them too)