Ty noticed a lusty smile return to Eileen's face. "Had another wish idea?" she asked.
"Yes, actually." Eileen stroked Ty's stomach and she shivered under his touch, still kinda in disbelief at how his desires had transformed their bodies and lives. "I'd love for you to wish you'll be comfortable whatever happens with your pregnancy, and then just... accelerate it. I wanna see you swell up with life, and then birth my litter."
The idea of it made Ty more excited than it probably should, to say nothing of how she noticed his erection was returning because of suggesting it. It did sound fun, and she did want to see her and Eileen's offspring sooner rather than later. After a second to consider it, she nodded and wished for it.
She and her lover watched as their offspring rapidly began to gestate inside her. Her petite stomach was rapidly distending- at first to the proportions normal for a single pregnancy, then for twins, triplets, quaduplets, quintuplets, sextuplets, septuplets, octuplets, nonuplets... and more and more still. Her breasts also seemed to expand, swelling from the modest B-cups of a teen through size after size, and she noticed milk leaking from her teats, realizing she was lactating.
Beyond her own heavy breathing as her body developed towards motherhood, she heard pants and groans above her- and once her eyes focused, she realized Eileen was masturbating over her. She barely even registered how depraved this was, her eyes fixing on his handsome toned figure and his fist pumping the large erection that had made her pregnant. "You'll make such a hot mom," he managed to get out while stroking himself. "I can't wait to give you m-more..." While Ty grew closer to birth, Eileen hunched over her and shot streaks of thick cum across her stomach, the first time so far he'd cum anywhere but inside her. Even if this load of sperm would not be giving Ty more offspring, neither she nor Eileen cared right now.
To Ty's relief, what she did very much care about went off without a hitch. Having satisfied himself again, Eileen took her hand and eased her through the birthing. Thankfully once she had managed to part her nether lips enough to bear the first child, the rest followed without too much trouble, but it went on for so long. Thankfully she managed to focus enough to wish into existence some surgical scissors so that Eileen could cut the umbilical cord from each one. He passed each one to her, and they all suckled for a while on her large breasts, giving her the chance to stroke their hair and kiss their heads before Eileen lay them down on the soft carpet.
Ty was so out of sorts she didn't process which of their children were boys and which were girls, or even how many there were. What she did definitely process was that they were adorable, and she felt proud of having bore them. Eileen soon moved up to kiss her forehead and tell her, "You did really well, babe."
"Thanks," Ty replied breathlessly. "So uh... what now?"