My male cat Boomer is an American Curl with blue markings and long-haired. My boyfriend has another cat, Doddy a female siamese. Usually I would bring my cat to his house for a 'play-date' and they would play together and when I go back I'll take him home with me.

Doddy recently went into heat for the first time two days ago. I happen to bring Boomer over that day. She was meaowing and being affectionate and when I arrived my tiny, 4 month-old cat started humping her. It was a weird sight since my cat is so much younger and tinier than the female and he could not even reach her to penetrate her sexually. But he was biting her neck, and she was obeying. Clearly somewhat disturbing when your cat is still a baby with a weight of 1KG

Just want to ask you guys here, what do you think? Is it normal? Can Boomer be biologically prepared to impregnate Doddy?