Fluffy and Pepper were indeed females, so yes. All the cats I have had in my life were female. We *did* have a male kitten when I was four or five. Someone my dad worked with found him in Lafayette Park, so they named him Lafayette, and my dad brought him home. We only kept him for about a week or so, because my mom thought he was too wild (like I said, I was only four or five, and my sister was only five or six). We gave him to a woman my dad used to work with.
BTW, Snickers was not my cat. She was my parents' cat. They adopted her after my sister and I moved out of their house. Actually, it was around the same time my sister and I adopted Snowball.