Outside in the break area, Cassie practically fell into the couch and took the flavoured water bottle Val offered, taking a huge sip. She hadn't even realised she was that thirsty.
Val offered her a shower, but she was happy to just stay on the couch.
Cassie was glad for the break. If things had just kept going, she thought she'd pass out again.
Val left her to relax and moved some things around in the room. The door was half closed and blocked her view. All she could see was the nature video playing and the outline of Val occasionally walking across the doorway.
Val stepped out holding the bedsheets in a ball that she dropped in the corner.
"Fresh sheets. You soaked those ones."
"Sweat or...uh..."
Val laughed, "Just yes."
The 15 minutes passed quickly but Cassie felt more herself afterwards. He pussy was still a bit puffy, but not nearly so large as after the pumping.
"Are you ready for the next section of the challenge?"
Cassie looked at the clock and sighed. It had been...interesting so far. But, four more hours was daunting.
Cassie walked into the room to see what Val had been doing. At the back of the room behind the bed was now a small stand holding some kind of device up in the air with a dildo sticking straight up above it.
"Have you ever tried one of these?"
"What even is it?"
"It's the best model of the Sybian ride ever made. Bradshaw had their top model customised."
Val brought over the regular lube bottle and slathered lube over the dildo and across a raised area with small raised nubs.
"When you're ready...hop on."
Cassie looked at the device. It was daunting. Obviously some kind of fuck machine. She briefly imagined it pistoning up and down and shuddered. Surely not?
Cassie slipped off the robe and handed it to Val. It had been nice relaxing in it. She felt exposed standing naked with Val guiding her like this. Sex was one thing. But this felt clinical or something.
Cassie stood over the dildo and gently lowered herself down onto it. She gently bobbed up and down on it until it's full length was inside her and her clit was resting on the raised pad. Her feet were flat on the floor with her legs only slightly bent. She thought it was like riding a horse apart from the dildo.
The dildo was a nice size. It was a comfortable length, but nicely big around making her feel full but not over full. The Goldilocks of dildos.
Val handed her a small remote control with two dials and an on/off button.
"Start slow and experiment. It builds up on you."
Val walked out the door behind her and Cassie heard it lock as it closed. The screens continued to show the calm meadow around her.
Cassie took some time with the device. Her clit was resting on a raised pad. If she shifted just a bit, it rubbed her clit nicely. If she beared down on it, it slightly parted her lips.
The two dials on the remote were labelled "spin" and "vibe". Both dials went from 0 to 11 which made her smile--someone had a sense of humour.
She turned it on and it remained silent and still. She turned the "spin" dial to 1 and the dildo began moving vet slowly inside her. She let it continue and realised the dildo was making a long slow circle that was perfectly rubbing her deep inside in and around her g-spot. It was too slow...but she could see where this would be amazing.
She turned that dial back to zero and tried the vibe dial on 1. As she guessed, the dildo and pad began to vibrate very slowly. The dildo sent deep sensations all along it's length that felt like they were rippling out across her body. She found herself moving on the thing at her clit, trying to find the best angle.
"Ready?" Val's voice came over the speakers.
