Your mate has been feeling unwell recently. Her breasts have been feeling tender. The zookeepers took her away for experimentation today. When she came back, you knew what was up with her.
She had new life growing in her womb. And it was your doing. And you couldn't be any happier!
You see now that she has a slight bump on her. You go up behind her, and hug her. You feel her belly.
You would never have gotten laid this easily as a human! But your carefree life as a monkey has changed all of this.
Your mate was feeling great too! Before all of this, she never had a mate. She was overjoyed when you came into her cage. She knew that you were the one for her. And she knew you would not resist. And as soon as you ejaculated into her, there was no going back. Your sperm bonded with her egg. Suddenly, she felt her baby inside of her moving. Her breasts stung a little. In 8 months, she'd have to push this thing out! She was very scared, but at the same time - She knew that you would make a great dad.