Doggystyle, of course

The pressure in your balls all but yelled the need to deposit a load into a warm, wet hole. The sperm in there did not care what a pregnancy might do to Rebecca's future, of how it might impact her career, her dates, even her relationship with her parents - though something within told you without words that it would be seen as a gift. Instead, all that mattered was siring the next generation.

It was something you were only too happy to oblige.

With a shriek of delight from your obedient girl, you manhandled her so she rested on her knees and hands, round ass facing you. The coolness of the flooring insulated by your jeans, you lined up your dick with her pouting lower lips. A moment after sliding your tip over the entrance in order to coat it in her wetness alongside her saliva, you thrusted into her with all the ferocity of your primal urges.

The women around the both of you clapped and gave polite cheers. You were in a public after all.

Such civility cannot be expected from your blonde pet, however. Loud yips of pleasure accompanied each squelching thrust, alerting passerbys at the uptick in action as you sought to mold her molten insides to the shape of your cock. Some nudged each other and walked closer, others flashed a smile but were prompted by their busy schedule to keep walking.

The gratification of sliding in and out was almost too much as you wanted to release your lust into her in seconds. But something within you rebelled against that. It may have been pride, it may be that you wished to impress your audience, but regardless, you desired to raise your pet to the heights of sexual pleasure a second time before you finally came. Besides, could you really call yourself a good owner if you didn't?

Your self-imposed task was made a lot easier by her acting like a bitch in heat. Slaps to her ass had her moaning, gropes to her breasts were answered by her pleased grunts, and your own thrusts formed a rthymic drum-roll. You played her body like an instrument.

"Aah, aah, aaaaahhhh!"

A minute later, you felt it. The second constriction of her insides pulsed like music to your own organ, as she announced another orgasm to the world with shakes and pants and incoherent yelling.

Regaining her voice for a second, she pleaded, "Knock me up! Cum inside! Please -"

And so with a roar, you hilted yourself fully inside her and let go of your self-control. Shuddering yourself, spurt after spurt of cum broke through the walls of her cervix and layed seige on her eggs, igniting orgasmic after-shocks in the spasming girl. Without a shadow you doubt, you noted with a proud feeling that you have just made the nineteen year-old, blue-eyed cashier the next mother of your children.

Still inside her, you said to her, "Good girl... good girl." Your praises broke the hush that had formed at the climax of the act, and the audience, uncaring of volume, finally let out their rapturous applause.

"The prize of a lifetime!" Amelia exclaimed. Similar sayings were repeated by other people, while their companions nodded their heads and agreed that it was a well-earned treat.

Musing, you thought that it was truly generous of you, to give her a reward that would change her entire life. Apparantly she agreed, as when you softened enough to exit her with a small noise, she shamelessly turned over onto her back and cupped her pussy with her hands, keen on not letting any of your seed escape. Her bare breasts filled you with a quiet joy of your own.

"This grateful pet thanks you master! Thank you, thank you, thank you -" You calmed her by moving next to her mouth and gesturing her to clean you up. Her eagerness to obey shined through one last time, as she licked and sucked you clean of both her cum and your own. With a quiet laugh, you petted her head a couple times, then stepped back once sufficiently wiped and scrubbed by her tongue.

Fixing your jeans back into place, you pulled out your phone and inputted her details as she rattled off her number and address with a big smile. A promise was a promise, your actions showed, as you also inserted a reminder set a year from now. Luckily for your wallet, she showed no longing for any paternity payments - you reminded yourself that she saw this as her prize.

Then, you surveyed the dispersing audience, who continued to chat about the improntu show. Here and there, some enthralled members discussed dreams of participating in the next one.