"Okay, so I'll hide you in my boobs and drop you off in your room, sound good?" Izzy offered. "What? Why couldn't you just hide me in one of your pockets?" Jack protested. Izzy scoffed. "Because both of them have holes in the back. If I put you in there, you'd just slide up against my crotch". Jack nodded. "Good point. Okay, just don't squeeze or anything". Izzy grinned. "I mean, if you weren't so hot on staying up there, maybe my other side would suit your-"
"Absolutely not, no" Jack intervened. Izzy giggled. "Suit yourself" she said as she lifted Jack up. "You know, Jack, I could just throw you in there and boom you're mine. I always have loved messing with you". Jack rolled his eyes. "That much was apparent. But no, come on. Tell you what, just get me back to my room and I'll owe you a favor". That piqued Izzy's interest and she raised her eyebrows. "What kind of favor?".
"I don't know, what would you want?" Jack asked. "I have a few ideas in mind, but I'll let you know when I need them" Izzy grinned. Jack shrugged his shoulders and Izzy placed him in her bosom. She released the neck of her shirt and Jack was thrust into darkness for the time being. Izzy grabs her stuff and walks into the house, swaying her chest all the while. Jack bounced a little bit before settling in deeper between her mounds, with much less movement capability. Jack cursed his sister as she went through the living room, greeting her mom and Lucy, then going upstairs to her and Jack's room. She arrived at Jack's opened door and pulled back the neck of her shirt to grab Jack.
"And we have arrived at our final destination, the exit is to your north and via my hand. Thank you for riding the S.S Izzy, we hope you come back soon" Izzy laughed. "Jack just moaned and struggled to get out of her bosom on his own, which caused Izzy to laugh even more. Her chest vibrated more and more, further sliding Jack downwards. "Izzy! Izzy, help!" Jack yelled. Finally, Izzy came to the rescue and pinched Jack out a few moments before he would have been completely submerged in his own sister's breasts. Izzy dropped Jack off on the ground, grinned at him, then went to her room to get ready for a shower.
Jack, exhausted and dirty, went behind the door and used his shrink ray to return to his normal size. Afterwards, he went and cleaned up, changed, went downstairs and greeted his mom and Lucy, then grabbed his dinner and went back up to his room, hoping to avoid Izzy for the rest of the night. Eventually, Jack did fall asleep, despite the lingering images of what transpired throughout the day.
The next morning, what happens?