Of course not

"Sorry mom, with these new breeder modifications, I'm far from done." In fact, your cock is still rock hard, you haven't softened in the slightest and are ready for round two already. "Just keep doing what you were doing."

Seeing no other options, and with her son still balls deep inside her and fully erect, she resumed her riding. It was much easier now and she actually managed to bounce up and down on him a little bit. While she does, excess cum leaks from around your shaft. "So mom," you say, trying to strike up a conversation, "Would you rather have a boy or a girl?"

She stops. "I hadn't thought about it... it's just all so sudden... and I still have to tell your father-" You interupt her with a spank on her ass.

"Keep riding," you order her.

"Oh, of course, sorry." By now she is able to go up and down easier, helped along by your hands on her waist. Your second load isn't as big as your first, but it's still much larger than any you have had before. You feel like you have a fire hose between your legs, and this time, you keep her moving while you cum. She is filled to the brim, and cum begins pouring out of her.

"Wow honey you shot so much of your stuff in me! I can't take any more!" She pants, stopping herself again. "Ummm, I know it's a lot to ask, but I did have a book club meeting soon..."