Zoe firmly grabs on to Jon's arm and drags him downstairs and towards the front door, followed closely by Karyn making her way to the kitchen.
As the couple was about to make their way through the front door they are suddenly interrupted by a feminine voice coming from the living room.
-- "Zoe is that you? My goodness Jon you've had your puberty!"
--"I know, isn't he handsome mom? We were just about to go out and see he gets blessed with a few more girls."
Jon looks over in direction of the voice, curious as to see how his mother was affected by his wish.
Immediately he remarks how much she looks like Zoe, in fact he remarks that she looks a little too much like Zoe. If that is their mother she should getting up there in age, yet she doesn't appear to be more than 5 or 6 years older than Zoe.
Jon thinks to himself "Did the alien cells also change the way people age?"
"Correct" replies the voice, "people don't show their age anymore. They simply slow down as the years go on until they eventually completely shut down forever."
--"Oh that's right, I can still remember like it was yesterday the day your father picked me up. Guess I'll have to wait to have a fun girl to girl chat with my new daughter."
--"You can chat with me in the meantime ma'am" says Karyn from the kitchen.
--"Jon! How on earth did you manage to already have a second girl?"
--"Ah well it's a long story mom, but I'm sure she'll tell you all about it."
Suddenly Zoe's mom leaps out of her chair and lunges at Jon almost knocking him over. She hugs Jon very tightly, his head sinking into her bosom. Reflexively Jon tries to pull away, afraid that he'd soon start getting aroused by the embrace of his own mother. However that's when a sinking feeling hit him, there was nothing. Sure having his head pushed up in between her breasts was very comfortable and pleasant, but he didn't feel a single hint of arousal.
"What gives?" thought Jon "It's not like I want to be turned on by my own mother but I should be feeling at least something!"
"That's because while men can appreciate the beauty of other women, they can only get aroused by their own."
Almost as suddenly as she had pounced on him she pulls him back out.
--"Oh Jon, you're finally calling me mother! Is this a step-mom thing since Zoe is finally your woman? Oh I don't care, I've wanting you to call me that for years!"
--"Mom! You're embarrassing him! Besides we need to get going, go chat with Karyn in the kitchen already" protests Zoe
Jon finally understood why Zoe and his "mom" looked so different than they did before. If he could have multiple wives, so could his dad. That wasn't his mom, but his dad's second wife and his half-sister Zoe's mother.
Thanks to Shiromi on pixiv for the artwork, see more here https://fictionbranches.net/fb/add/4472271
