Saya stayed as still as she could as the nurse and her assistant rubbed the lubricant into her naked flesh. Their hands roamed all over her body, touching places that if the situation was different would have gotten a hard slap to the face. Takashi seemed to be trying to stick to less private areas, rubbing her back and stomach, but that didn’t comfort Saya. What was the point of the male not touching her goods when the other person was being a pervert?

“I think you put enough lube on my boobs, Ms. Shizuka!” Saya barked as she stared down at the blond roll her boobs around in her hands. Shizuka reluctantly let go and then started applying the lubricant to Saya’s buttocks. Saya grimaced and closed her eyes tightly as she felt the soft hands knead her ass cheeks until every smooth, round inch was covered in slippery lubricant. Takashi finished with her back and took a step back unable to keep from admiring the sight of the pink haired girl all lubed up. A bright sheen reflected off Saya, her flesh so glossy that it was almost blinding.

“Nice job, Takashi. Now comes the hard part,” Shizuka said without missing a beat. She didn’t have to ogle the teenage girl, she’d soon be feeling her deep inside of her. Shizuka was doing this to save Saya, but that didn’t mean she couldn’t enjoy this. She had always been a very sexual active girl, getting a new lover every once or twice a week and spending her a lot of her time having sex. The undead apocalypses had ended her fun, hard to have spontaneous sex when the dead are walking around. She missed it and even though they were treating this as a nothing sexual, her body disagreed as she prepared to be anally invaded by a whole person.

“Hard part,” Takashi muttered. He was thinking about something else that was hard besides the job they had in front of him. Takashi was in no way sexually active before the apocalypse. His only relationship had been with Rei and they hadn’t gotten past handholding. The past month he had been surrounded by beautiful, bouncy women several of whom he thought might be interested in him. Nothing had come of it because of the danger they were constantly in, but his mind could wander and his hormones could get out of control. He wasn’t going to do anything perverted, but he wasn’t going to look away.

Saya just grumbled, her libido in complete control and her finding nothing sexy about the situation. She crossed her arms over her chest, but quickly removed them when she realized she was pushing her breasts together with her arms. She just hoped this ended quickly.

“Saya, just give me a minute to get myself ready for you,” Shizuka told the impatient teen as she began to pull down her skirt. Underneath, she had on a pair of black silk panties that both teens had seen before. Not on the nurse, but with the rest of the laundry with the rest of Shizuka’s clothes. She pulled them off and put them carefully on the dresser beside the bed for later. Crawling onto her bed, both Saya and Takashi took a step back as she pushed her large, heart-shaped rear up. They knew the blond wasn’t just big chested, but the size of her rump was still surprising when you saw it shoved out at you. Two pale, globes of flesh and fat, pushed together absolutely perfectly. Shizuka’s butt matched her chest; it was big and jiggled at the smallest movement.

“Okay, I had trouble believing I could really fit up there when Ms. Shizuka first suggested it, but now that I can see how big it is I have no doubt that even fatass can squeeze past those mountains,” Saya commented, trying to not sound bitter that Shizuka had a much nicer rump then her. It probably made her off balance and had to make shopping for pants and skirts hard, she reasoned. Takashi just nodded and tried not to drool at the big, curvy behind. So this was the ass he was saving nearly every day. So worth it.

“What are you staring at?” Shizuka asked obliviously. The two teens remained silent, turning their heads away slightly so they weren’t looking right at her rump.

“Lets hope I’m still as good at this as I was before everything went bad. It should be just like riding a bike,” Shizuka muttered to herself as she focused on getting her rear ready for the biggest object it had ever taken. Reaching between her thighs she brought a handful of lubricant past her sex. She didn’t smear it onto her cheeks like she had with Saya, instead she sank her fingers into her crack and pressed her slippery digits into her anus. Her fingers slipped in with a wet ‘splurt’ sound and she began rubbing her sphincter and rectum with the lube.

All eyes snapped back onto her buttocks as she her ass started wobbling around to her anal ministrations. As her hand moved around in her crack, she pushed her ass cheeks around making her ass bounce all around for Saya and Takashi to watch. The dance of Shizuka’s booty became erotic as the blond started breathing deeply and letting soft moans escape her pursed lips. She tried to control herself, but it had been so long since she had a chance to have someone touch her there. She sank all four fingers into her rectum and pumped her fingers inside the tight orifice. Her pussy grew hot and her nipples hardened. An orgasm was coming soon, but she stopped herself before that happened. She was here to help Saya, not get off in front of other people.

With a pop her fingers came out of her ass and she pulled her hand back. Lying face first on the bed with her butt in the air, she reached around and grabbed her cheeks in both hands. Her fingers dug into the doughy flesh as she pulled them apart, revealing her pink, dilated ass hole for Saya and Takashi to see. A little bit of lube dripped from her wrinkled hole, running down to her pussy which was not getting any cooler. Saya stared at the tiny hole and felt a lump in her throat that felt as big as Shizuka’s butt.

“Takashi, is this as crazy as I think it is?” The boy nodded to her question, his erection throbbing in his pants. Crazy didn’t even begin to describe this.

“Okay Takashi, help Saya get in. Don’t worry, I’m very limber,” Shizuka said, unable to keep her voice from getting husky. Even though she was acting lewd, Saya moved closer, knowing that she had to do this and hoping, no, praying, this didn’t get any more perverted.