10 girls

"Yeah Keira, ya know I'd love to get that harem together. Why don't we start small for now? Having 10 girls in my harem seems like a good start!"

Keira doesn't seem to be fazed at all. "Sure, John! My friend group has more than 10. We could go through and organize a roster of girls. When do you think you'll need the harem by?"

You smile. All your wildest dreams are coming true.

"Today after school would be a great time to commence my new harem, Keira."