Yes, fuck your nanny again

Without waiting for her to gather her wits, you got on top of her to exert your dominance, pressing your hard body against her soft body, your hard dick against the soft opening of her pussy. You push inside her, fully sheathed before she can say a word.

Sara gazes at you as she put her hands around your head. "You're inside me," she murmured, her voice not of betrayal, but of wonder, puzzlement.

"Shouldn't I be inside you?"

"You shouldn't. I'm married."

Sighing, you slowly pull your dick our of her pussy, and Sara narrows her eyes; was it disappointment in them? But that's moot point as you thrust inside just as the head of your dick was about to exit her pussy.

"Ahh!" Sara lets out a surprised gasp.

In a short term you spend as Sara's lover, you realize something; she didn't ask you to wear condom. She could have been using a contraceptive, but you don't know. But given the situation with your grandfather's request, there's probably a chance that she's unprotected. "You're not using any contraceptive, are you?"

"No, I'm supposed to take the Plan B tomorrow."

It is as you expected. There's a reason it is called a 'Plan B' instead of 'Plan A'. "Really? I'm going to fill your fertile pussy with my seeds before I send you home with our baby growing inside you."

Previously recovering from her climax, Sara begins to breath heavily once more, as she moves her hips to match the tempo of your thrusting. She sounds like a beast in heat. Sara is most likely fertile, and she probably arranged this to have sex with you, using the duty as a pretext. If she gets pregnant from it, she would pass it off as an unexpected accident. In fact, you're quite confident she didn't prepare any Plan B.

"Your tummy will grow bigger and your breasts will swell with milk to feed our illicit child, which is conceived out of wedlock."

The image you paint with your words excite you very much. However, it overwhelms Sara even more. With her pussy lubricated with her juice and your cum, Sara bucks her hips as hard as possible, growling softly as something primal takes over her rational mind.

"That's it, Sara." as you respond in cum, brutally fucking her with abandon, only your previous session allows you to last that long. "Show me how much you want this illicit mating to happen."

"I want it!" Sara pants. "I want to become a mother to your child. Are you looking forward to become a proud papa too?"

"Yes," you groan.

"Then do it, Young Master. Cum inside my married pussy and and give me your baby."

Sara's urging has been the straw that breaks the camel's back. You slam inside her, as you begin cumming. As your first spurt begin leaving your dick toward her pussy, you look down at her body, trying to memorize hot it looks like before it starts to change due to your child growing inside it. God, she is so beautiful. As you cum more and more, you fervently hope that she would get pregnant tonight. When it happens, she would carry it to full term and deliver your baby to her husband to raise.