I fear mama cat might hurt her 5 month old kitten. Might have to get rid of mama cat!

Mama cat, an outdoor cat, used to come by for food and pets, sometimes staying inside briefly. She eventually had kittens, and we kept one.

Mama cat got fixed and loved her kitten for months. Now, the kitten is 5 months old (soon to be fixed), and mama cat is hissing, slapping, and even mounting her kitten. Though she occasionally licks the kitten, this loving behavior is becoming less frequent.

There’s no tail wagging, and this doesn’t seem playful. I’m wondering if I’ll have to get rid of the mama cat. I liked having an outside cat for convenience, but she’s becoming less convenient if she’s going to hurt the kitten.