Harley can't get enough of Yara's lips

The taste of Yara's lips exploded on Harley's own as soon as they made contact. The demoness' lips tasted divine, better than anything Harley had ever tasted. She locked their lips together, her tongue flickering across the purple lips to get more of the taste. Yara's own long tongue joined hers, the nimble muscles dancing and coiling around each other. Eventually, the incredible taste faded and Harley managed to pull herself away, still slightly dazed from the intense kiss.

"You like that, Harley? It's a new lip gloss I just got. It's so shiny and it tastes just incredible," Yara said slyly. Her hand slipped down and caught a bead of pre leaking from the tip of her cock and smeared it on her lips, spreading the tainted fluid on her plump cocksuckers. Harley felt a hint of fear that she had just been sucking her sister's precum off of her mouth, but the memory of the incredible taste pushed away the horror. "From the way you're licking your lips, I'm going to take that as a 'yes,'" Yara said. Harley realized that she really was licking her lips, forcing herself to stop.

"You don't have to be ashamed, Harley," her sister cooed in her ear. "I can barely stop myself from doubling over and shooting a load all over my own face. But you said you were going to leave, so I want to see you off first." Yara walked over to the window and, with a quick push, broke the lock off the window and opened it wide enough for a person to climb out. Harley's eyes shot between her sister and open escape route. "Well, go on. I told you, just a kiss and then you can go. I'd get out of town though. This hotel won't hold us for long. I think I'm going to stay here and find a nice mouth to suck me off. I haven't even cum with this thing yet, can you believe it? Time to change that. Bye sis. Have fun." Yara said, slowly walking back towards the huge orgy. She walked slowly on purpose, dragging out the seconds, waiting for the inevitable.

"...wait," Harley said, hardly believing the word coming out of her mouth. Yara stopped, turning so that Harley could see the tip of her purple cock.

"Yeah?"

"Can...can I have another kiss?" she asked, still torn between making a break for the window and the incredible taste of her sister's lips. "Just one more? Please?"

"Anything for my little sister," Yara said, opening her arms to Harley, who immediately rushed into them. She pulled her taller sister's mouth down to her own, mashing their lips together for more of that delightful taste.

...nothing. No burst of flavor and delight, no flash of mindless joy. Just the taste of her sister's mouth. Harley immediately pushed her sister away, furious.

"Where is it? Why don't you taste as good? I want more. Give me more!" Harley yelled, staring at her sister with fury.

"Oh, I'm sorry, I licked it all off. I just couldn't help it, it tastes soooo good. Don't worry though, there's plenty more." Yara squeezed her huge erection gently, another drop of precum oozing out the tip. She quickly scooped it up and shoved it inside her mouth, moaning at the taste. "Fuck, I could drink that all day. Oh, sorry, you wanted some more, right Harley? Here you go," Yara said, pushing another drop of her fluids out of her cock tip, letting it sit there for her sister. "Better come and get it soon, it's best fresh."

Harley tried to resist it, she really did. But the memory haunted her. That perfect, delicious taste. She had to have more. More than anything. She took a hesitant step towards her demonic sister, reaching out to snag the drop of liquid, her hand brushing against the sincubus' throbbing cock. Quickly bringing it to her mouth, Harley dropped to her knees as the taste spread across her tongue. It was even better this time, the flavor refined without the taste of Yara's lips to intrude. Before the flavor faded, Harley jerked forwards, wrapping her lips around her sister's drooling cock, sucking frantically. The constant taste of precum shot thrills of arousal and pleasure through her body, turning her damp pussy into a veritable waterfall.

Yara did nothing to stop her, just holding her sister's hair back to keep it from getting in the way. Harley was getting more and more into sucking on her sister, beginning to work her hands across the long shaft of Yara's cock, yearning for more of her precum, which began to flow in earnest. Yara gripped her younger sister's head tighter, the faster blowjob pushing her closer and closer to her cock's first orgasm. The buildup grew and grew, becoming unbearable and then climbing more. The sincubus moaned and jerked her hips, feeding Harley more of her dark purple cock.

"Yeah sis, suck me off. You think my precum tastes good, I can't wait for you to taste my jizz. You'll have to give some to me too though, sisters are supposed to share after all. Oh shit, I'm getting close. You ready to taste a real load? Yeah, just like that, yeahyeahyeahYEAHYEAHYEAAAAAAAHHH!! HERE IT COMES!!!" Yara shrieked, digging her fingers into her sister's styled locks as the floodgates behind her cock exploded. Her eyes rolled back as the feeling of her first male orgasm detonated through her body and mind. The first shot was bliss, the second indescribable.

Harley came at the first taste of her sister's cum and would have collapsed if it hadn't meant letting go of Yara's shooting penis. She swallowed as much as she could, but it wasn't enough to keep up with the torrent entering her mouth. It spilled out the sides, dropping down onto her tits, which were rapidly gaining size. Unable to stop herself, Yara **** the full length of her massive dick into Harley's mouth and throat, causing the younger woman to gag as the accumulated cum in her mouth shot out, coating Yara's still pulsing length and legs. Finally, after a minute of constant orgasm, Yara's ecsatcy began to ebb. She quickly pulled out and shot two last massive loads, one in Harley's mouth and the other all over her face.

"Holy fuck," Yara said breathlessly, letting go of her sister's head and hair. Harley collapsed to the floor on her back, tongue playing with the last wad of cum in her mouth while her eyes stared off into space. Yara, her cock still twitching from orgasm, quickly dropped down, pressing her heavy tits against her sister's matching pair and locking their lips together again. They played with the cum, swapping the thick fluid back and forth before Yara finally swallowed it, panting heavily. "Did you like that, Harley? Or maybe I should call you Harlot now. I think it fits you better now," the sincubus said, looking at her sister's transformed, demonic body. Pale skin, the same color as cum, stretched and sloped delightfully, the younger sister having curves to beat her sister's. She hardly looked like a demon, if it weren't for the slitted eyes and horns that would make for a perfect grip for whoever she was blowing.

"Call me whatever you want, just give me more of your cum. I need it. Please Yara, I need it!"

"Call me 'Mistress' and I'll think about it," Yara said, looking down on her drooling sister and smirking.

"Yes, Mistress. Now FUCK ME!!" Harley screamed, tackling her sister down and swallowing her rehardening dick like it was nothing. It wasn't long before Harley was **** on another massive load, delighting as the thick cum slid down her throat.

"I hope you're not done yet, sis," Harley said as soon as she could breathe again, straddling Yara at the same time. "You're going to fuck me full until I'm burping jizz and pregnant with triplets." The sisters continued their mad fucking, heedless of the growing pool of cum surrounding them.