It occurred to Jack that thanks to her mother's interruption Jenny and him hadn't gone all the way together. And now she was a mother herself, years before her time thanks to his meddling. He could put things back the way they had been and she seemed happy enough regardless. Jack was convinced that he needed to be the one to make Jenny happy, and try to make up for all the trouble he'd caused her.
Also he was positively famished.
His mind made up Jack wished himself the father of Jenny's children.
Jenny felt arms wrap around her shoulders as one hand tousled the back of Nathan's head while the other sqeezed her free tit. She grinned. "Welcome back stud" she said before planting a big kiss on the love of her life's cheek. "Thanks darling" Jack replied, feeling her fully erect nipple through the blouse's fabric. Inhaling sharply, Jenny was startled by Jack's tongue slipping into her mouth. Losing herself to the moment she briefly reciprocated before pulling back to catch her breath. "What brought this on?" she asked, feeling lightheaded. "Seeing you and Nathan embrace so warmly made me realize what a lucky man I am" Jack answered. As Jenny tried to process this, Jack shifted over to a spot next to Nathan. "Move over kiddo. Dad's hungry". Before anyone could say a thing he uncovered Jenny's other breast and began to suckle it, drinking deeply of its sweet bounty. Nathan, excited by his father's new game, resumed his meal with gusto. With two grown men greedily sucking on her tits all Jenny could do was cover her mouth to supress her moaning . Her pussy grew moist, it's juices began to flow through her panties to pool around her ass. Her crotch ached with longing. Her son and partner finally sated, Jenny lay flat on her back panting fiercely. One hand massaged her raw breasts while the other frantically tried to satisfy the agonizing void in her loins. "Mommy? What's wrong?" Nathan asked with distress. Jack put a hand on his shoulder, calming the boy, then knelt down by his mother. Cradling her head, Jack whispered "Jen, I think it's time they learned."