Yes

Jessica lowers herself onto Jack who gazes at his cock vanishing inside his beautiful girlfriend.
She doesn't even stop halfway, from head to base in one continuous motion until Jack's full balls make their encounter with Jessicas ass.

Jessica, now filled with Jacks raging erection, has to stifle her moans as she feels Jack filling her up. She hadn't taken him fully before and the sensation is incredible. Jessica takes Jack's hand and places it on her belly, leaning into Jack she whispers: "Feel yourself...in me."
It is true, Jack can feel the head of his cock push against Jessica's bellybutton.

Jack embraces Jessica in a tight grip. He knows that whatever Jessica is going to do with her beautiful firm body, he will cum like a fountain.

There is no way he can hold back for anything. It arn't going to be any large motions that will make him cum though.

"I want you to pour yourself into me, as deep... and as much....", Jessica's vaginal muscles start to contract around Jack as she starts to orgasm, "...as you can."

She throw's herself upward, her eyes locked onto Jack as he pulls Jessica as hard as he can onto his throbbing cock.
Reaching around into Jack's groin she forcefully grabs his balls and starts to squeeze them. It's nearly on the verge of painful for Jack, but only an expression of how vigorously she wants his cum to take hold within her body.

Jessica squeezes hard on Jack's balls, pressing the first drops of virile sperm out of their origin and into his ready to explode member. Forcefully, the first wave
of potent liquids mix in his groin and race up through his now hard as steel cock. Jack propels himself upwards as, without any leeway, his seed of life exits his piercing cock, and he expels into Jessica's waiting womb. "AHHHHHHHHHHHHH.....", Jessica yells as she can feel the fiery splash inside her body. She knows what has happened. Fully aware of the implications she milks Jack for every drop he is able to give her. Throb after throb, pulse after pulse, Jack is filling her with himself, where without a doubt it will stay and blossom.

As the last pulse of his cum enters his lover and Jack regains consciousness he can't help but notice that someone is looking at him from the side.
Slowly, he turns his head to see a big pair of brown eyes and an open mouth looking at him. It is Jessica's sister and she obviously has been enjoying herself from the passionate lovemaking of Jessica and Jack.