A/N: This is a continuation requested by four-el4.
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"You know I never took you to be a thong person," said Dylan. "You don't seem the type."
Cassandra gazed behind her and caught his eyes as she smiled. "I could say the same to you. Do you check out other girls?" She paused. "That's a silly question. Of course you do. The question is if you get off at the sight of their thongs."
"What would you do if I said I did?" he asked as he cocked an eyebrow.
Her tail flickered and caught him in the face. He spluttered for a moment before giving her a mock glare. She simply gave him a coy smile and batted her eyes innocently at him, but they knew there was nothing innocent about it. Licking his lips, he pressed his body closer into her. A wet splooching sound filled the room. He rested his head on her shoulder, breathing in her scent. In response, she wiggled her ass and he groaned at what it did to his cock. She was just asking for it and he would gladly oblige her. He nipped at her throat and tugged on her glittery purple g-string. She moaned in response.
"Seriously, why do like thongs?"
"Why so curious?" When he didn't answer right away, she huffed. "Well, the most obvious reason is no pantyline. Can you imagine if everyone knew exactly what kind of underwear I'm wearing? That'll be so embarrassing."
"And wearing a thong isn't?"
"Exactly. A girl should always be presentable, not to mention comfortable. Regular underwear just doesn't do it for me. I was always having to fix it before I went with thongs."
"So to avoid pantylines and they're comfortable? Got it."
"There is one more thing." She turned her head so her mouth was pressed against his ear and nipped at it. "I heard guys love thongs so the thought of them getting off at the sight of me wearing them is such a turn on."
The thought of other guys touching the sweet ass beneath him made him growl and shift his position as there was a suction noise. "No one is touching this ass."
"It's all yours," she barked out in between her laughs. "Now your turn. Fess up."
"You're not wrong that guys like thongs..."
"Hey, I spilled so don't chicken out."
"Well, if a girl's wearing a thong, it must mean she wants guys to know she's wild and available for sex."
"Uh huh, I doubt that's all."
"Personally, if a girl's got ass, she should definitely show it off. Regular underwear just isn't sexy."
"Right? Granny underwear is such a turn off."
"Speaking of thongs, going to explain what's going on here?"
With a smirk, she turned away from him to study the various thongs she had picked out and laid across her bed. She had been going through her thongs when Dylan showed up and hadn't gotten to putting them away before sex. The fact he somehow missed them during sex amused her and she snorted. Considering his fetish for thongs, she would have that he would have played with them while fucking her into the bed. She would be annoyed if he did that though. The only time he should be allowed to touch them was when she was wearing them. Ignoring the wet, spluttering sound that had been going on, she settled her gaze on one of her thongs.
The one right in front of her was a simple lacy white g-string with an open crotch or rather crotchless which made it easier to have sex. They should definitely try it out the next time they decided to have a little fun. On her left was another lacy thong except it was purple and slightly see through. It was also a t-back one instead of a g-string this time. Then there was the simple pink one with a black smile and the words yummy spelled out in all caps. This one had been a little joke between girls. At least she didn't end up with the dabbing fox on it. They had laughed at the unlucky girl's expense as she paid for the ugly looking thing.
She spotted another crotchless g-string right next to her pillow. It was a lacy wine red one. Looking over her thongs again, she noticed how quite a few of them were lacy or g-strings or both. It must be a sign about what her favorite kind of thong was. She wondered if Dylan had a preference or did he got a boner from any kind of thong. Perhaps she should take him shopping with her and have him help pick out some new thongs. A girl could never have enough thongs. She could already imagine him trying to hide his hard on as she showed off the thongs.
"Why don't you help me pick which thong I should wear?" asked Cassandra.
Dylan's response: "What kinds did you get?"
"Why don't you have a look yourself?"
"Nah," he said as he pulled back. "I'm good here."
She gasped as his cock slid out of her sloppy ass with a wet sound, leaving only the tip inside. Cum spilled out onto the sheets and she glared at him halfheartedly. He knew she was going to make him do the laundry again for dirty her bed, but it was well worth it. Thrusting into her as her ass made a suction sound, he licked his lips. Despite being pumped full of cum, her ass was eagerly devouring his hard dick. He had been a little disappointed she barely reacted to him fucking her while she was looking at her thongs. Well, he was just going to have to try a little harder than that.
They ended up falling asleep from exhaustion. Dylan had been unwilling to get up to go to his own room while Cassandra was too tired to kick him out. It wasn't like they hadn't shared a bed before. In fact, they had done it so many times now that it didn't faze the either of them to wake up to the other in the morning. Speaking of, he could feel her shifting beside him. He cracked open one eye and watched as her mostly naked body head towards to what he assumed was the bathroom. Admiring how her hips swayed and her ass wiggled in her thong, he felt himself grow hard again. God, he loved her ass.
Unable to control himself, he sat up as soon as she was gone from sight and headed for her drawers. Picking up the first thong he could find, he slid it around his hard cock and groaned at how the material felt on his sensitive skin. As he lazily jerked himself off, he wondered how Cassandra would react if he joined her in the shower. It wasn't like he would see anything new. They've practically seen each other naked everyday though they've not really shared a shower before. That would be a new and interesting experience. Just the thought had him cumming all over her thong.
Well, she was going to be upset he ruined another pair. He shrugged it off as he discarded the pair to slip out of the room. His ears twitched as he heard the sounds of running water. The fact he could hear the shower running so well must mean she had left the bathroom door open. Dylan smiled. She was practically saying he was free to come in and join her. He immediately headed towards the bathroom to find that it was not open like he had thought, but it wasn't closed or locked. Since the door wasn't closed all the way, he could peek inside if he wanted to. He wanted to.
Crouching down, he peered through the crack. His breath caught at the delicious sight in front of him. Cassandra's hands combed through her hair before sliding down her sides. He watched as her hands trailed down her curves towards her ass. His pants tightened as he grew hard. Seeing how her ass jiggled as she scrubbed whatever filth that clung to it, he was tempted to simply burst in and help her. He barely stopped himself when he spotted something not too far from the shower. Laying innocently on the floor was her discarded thong. Even from a distance, he could see it was still stained with cum.
Gazing back at her, he saw that her back was still towards him. If he was quick, he could grab her thong without her ever noticing him there. With his mind made up, he slipped his hand through the crack. Dylan winced when he heard the door creak slightly and glanced in her direction. She apparently didn't hear it over the running water. Reaching for the thong once more, he was annoyed to see that his fingers were mere inches away, but he still couldn't grab it. He would have to take a risk and open the door further so he could get it.
Pushing the door open so he could fit his upper body, he was about to snatch up the thong when a weight landed on his hand. The source was a foot connected to a wet, furry leg. It didn't take a genius to figure out what happened. He had been caught by Cassandra. Daring to look up, he stared up at his naked sister. Her arms were crossed across her ample chest. Instead of covering her breasts, they were right beneath them which emphasized that particular body part. She did not look impressed.
"What do you think you're doing barging in like that? Couldn't you wait until I finish my shower?" She uncrossed her arms to rest her hands on her hips as her breasts jiggled. "Not to mention trying to steal my thong. How shameless."
It was hard being ashamed of his actions when he got such a delicious view. Too bad he couldn't see her ass from where he was. Noticing how she was quickly becoming annoyed with his silence, he grabbed the foot that was on his hand with his other hand. Before she could react, he sucked on her big toe. He stared up at her to watch her reaction and was glad to see she wasn't about to throw him out of the bathroom. In fact, as he sucked on another toe and the scent coming off of her, she was getting turned on by what he was doing.
Releasing her toe with a loud pop, he trailed kissed up her leg. Emboldened by her lack of resistance, he continued upward until he was practically inhaling her wet pussy. She groaned as he slid his tongue inside of her. Lapping up the liquid, he stroked his hard dick with her discarded thong. Cassandra had been completely distracted with what his mouth was doing to her to not notice what the rest of his body was doing. The softness of her thong and the dried cum ground against his sensitive cock.
As he was about to cum, he stopped. While her thong felt amazing on his dick, he was eyeing something else that was better. She suddenly moaned as her juices spilled down his throat. Her hands pressed down against his fur and her ears twitched. When her grip weakened and her moans turned to pants, he pulled away from her cunt. She gave a disappointed whine, but he tugged on one of her feet instead. Intrigued with what he was up to, she obliged him, watching as he took her discarded thong and slip one foot through.
