Mark drags over a see-saw with modified seats to the centre of the playroom.
"Now who will go first?"
"You'll both pull a diaper out of the pail, which ever is heaviest will go first."
Jeff and Aidan grab a diaper each and bring it to Mark who weighs them.
"Jeff, yours is the heaviest, so you'll go first."
Aidan is lifted up onto the seat of the see-saw raised in the air, and buckled in place, and a pacifier gag pushed into his mouth.
A large plush is slid out behind Aidan and Mark brings out a selection of long dildos of various girths and shapes.
"Jeff, pick one."
Jeff picks a large pink one with multiple ridges, and Mark attaches it to the plush. One of the containers of liquid is hung up next to the plush and attached by a tube into it.
Jeff is then placed on the other side of the see-saw.
"Every time you rock the see-saw up and down, Aidan will get a bit of the liquid shot inside of him. Your goal is to push less then half of the container into him."
"Once you've finished, we'll measure it to see if your successful."
Mark unpins the see-saw and helps lower Aidan down onto the waiting dildo, who moans as it penetrates him.
Jeff starts to bounce the see-saw, bouncing the dildo in and out of Aidan causing Aidan to moan more. Each time Aidan is pushed down onto it a little bit of the creamy liquid pushes it's way in.
Jeff can see the container slowly empty, but it's unusual shape makes it hard to gauge how much has been injected, and he continues bouncing for a few more minutes before he stops, leaving Aidan suspended in the air again.
Mark pulls off the container of liquid and replaces it with one of the poop filled containers and rocks the see-saw a few more times pushing some of the brown mess inside too.
Mark then measures the seed filled container and tells Jeff the result.