It had been four years since Kara and Alex had sex with each other. Currently, they were both lying in bed together with Kara's head against Alex's chest. She looked up at her sister's face and smiled. Kara then slipped her body underneath the bed covers, and began to suck on Alex's cock. Alex moaned as she felt her own cock being sucked on.
"Oh Fuck," Alex moaned. "That feels soooooo gooooood." She grabbed the blanket and threw it away, revealing her little sister who was bobbing her head up and down on her cock. "Oh my god Kara. That feels soooooo gooooood."
Kara grazed the shaft with her teeth as she pressed forward and several inches of Alex's cock disappeared into her mouth. The knot holding her silky blonde tresses fell loose and her hair spilled around her face and shoulders as she bobbed her mouth up and down on Alex's dick making it glisten with her wetness.
Alex's excitement surpassed mere arousal and she watched transfixed as Kara orally ingested more and more of her turgid pole. Alex felt her dick bump against the opening of Kara's throat and she emitted a gurgling moan and slipped her mouth off Alex's cock. A thick string of glistening saliva connected her lower lip to Alex's throbbing organ and her lips were wet with spit and Alex's oozing precum. Kara stroked Alex's slippery tool with both hands and looking up at her older sister said, "I never did this with one so big. Am I doing okay?"
"Oh god, you have to ask? Fantastic!" Alex answered, and repeating her little sister's question, Alex asked, "What do you like?"
"Hmmmm. I love getting it in my mouth." Kara purred. "I like a guy to put me in my place, and do it to me. You know. . . . . . fuck my mouth?" She paused and gently bit her lower lip while studiously assessing Alex's organ. "But I'm not sure my mouth is big enough for you," Kara said uncertainly and coyly added, "Wanna try? You wanna fuck my mouth?"
Alex couldn't believe her ears. Her little sister liked to be fucked in her mouth; was asking Alex to fuck her mouth. She found herself staring down at Kara in disbelief. "Still think I'm so innocent?" Kara teased and began to rub the sloppy end of Alex's organ around her lips and cheeks. "Mmmmm, come on!" Kara taunted. "Fuck me!" Alex reached down and grasped the root of her own dick with her right hand. She pushed Kara's hair from her face so she could watch her own sister and Kara moaned "Oh yeah" as Alex gathered up a handful of Kara's hair in her left hand and guided her twitching pole toward Kara's open mouth.
Alex pushed the helmet between Kara's lips and she opened her mouth wide to accept Alex's girth. Her tongue danced around the head until Alex pressed deeper in and began to slowly piston back and forth inside her mouth, stretching her lips wider. Alex pulled free and saliva dribbled out of Kara's open lips.
"Like that?" Alex asked. "MmmHmm," Kara moaned. "Fuck my mouth just like that!" Alex stuffed her cock back inside Kara's wet mouth and pumped the head between her sister's lips.
Kara took her hands from Alex's thighs and gazed innocently up into her big sister's eyes while Alex plugged Kara's sweet lips full of her throbbing member. She reached behind her neck and untied the slender straps holding up the front of her low-cut dress and pushed the soft fabric away from her small, firm breasts. She cupped a breast in each hand and fondled her hardened nipples as Alex continued to pump her face with mounting intensity.
Alex stroked faster and deeper. The harder she fucked Kara's face, the more Kara moaned. Alex pulled out and Kara gasped for breath but reached instantly for Alex's sloppy pole. Saliva dripped from her parted lips and Alex's glistening shaft, coating the soft skin between Kara's petite breasts. Levering Alex's cock up against her own belly, Kara kissed the tip and slid her lips down the shaft and swirled her tongue around Alex's tightening balls.
"Do you like me sucking your cock?" Kara gasped and pounced on Alex's stalk again, forcing the head to the back of her mouth. She strained forward and Alex felt the crown press into the opening of the Kryptonian's throat. Kara gurgled incoherently as she slipped the thick, wet end of Alex's prick in and out of her tender throat.
She backed off slightly for a second and sucked air in around the meat filling her mouth and then again forced it back into her throat. She managed to impale herself around all but two or three inches at the root of Alex's staff before she had to relent or gag. A heavy wad of saliva spilled from her open lips as she pulled Alex's cock out of her mouth.
She gazed at Alex's thoroughly spit-soaked and reddened erection for a moment, then studiously licked and sucked the head before treating Alex to several long, slow stokes, stuffing the head down her throat and engulfing more than half of Alex's length on each stroke. Finally she paused and Alex noticed that Kara had slipped a hand under her own skirt. She closed her eyes and held Alex's cockhead tightly between her lips while she shuddered and quietly climaxed. After a moment, she opened her eyes and released her sister's cock. "Mmmmm," she moaned, "Sucking always gets me so hot. What makes you cum?"
Alex was almost too stunned to speak. Nothing in her experience with the DEO had prepared her for this moment. "Uh, yeah. Okay," she muttered stupidly.
"Okay, what?" Kara laughed. "Usually a guy cums as soon as I do deepthroat. I hope you don't want that. You're just too big for me to really deepthroat all the way."
"No." Alex said. "It's great; what you were doing. I just didn't know you wanted me to cum."
"Isn't that what this is all about?" Kara asked innocently. She opened her mouth and sucked Alex quickly and shallowly for a few moments and then added, "Cum for me." Kara resumed sucking, focusing her attention on exerting pressure with her lips and creating suction with her cheeks. She would pause and run her tongue over the sensitive glans just under the tip and then stroke Alex deeply in and out of her mouth.
Knowing Kara wanted her to cum seemed to release some inner reservation and Alex felt cum begin to boil up into her shaft. Kara seemed to sense it too. Alex's cock grew even harder as she held her mouth wide open urging Alex to plunge it into her wet throat. Alex was holding Kara's hair back and cradling the back of her head with both hands as she deeply fucked her face, the flared helmet popping in and out of her throat with a liquid smack and her mouth quivering when Alex suddenly reached the point of no return.
"I'm cumming!" Alex moaned. With a spasm of lust, her bulging testicles blasted a thick wad of scalding semen against the back of Kara's throat.
Kara suddenly backed off and slipped Alex's spasming cock out of her mouth, wrapped her delicate fingers around the bucking shaft and held the head a fraction of an inch before her lips, jacking Alex off into Kara's face. A second immense wad of semen exploded from Alex's engorged prick. It burst against Kara's slightly parted lips, splashing into her hot mouth, and was immediately followed by two more thick gobs that splattered her right cheek, streaked her blonde hair and spotted her forehead. The following squirt missed her face and struck the wall behind her head with an audible splat. She gagged slightly and coughed, cum and saliva dribbling out of her mouth as more of Alex's fresh semen blasted against her neck and squirted over her parted lips. Then Kara rubbed her face against the twitching flesh of Alex's cock and smeared the last several wads all over her lips, nose and chin.
Cum smeared her startled face and open lips as she looked up at her older sister in surprise. "You cum big too!" she giggled. She reached up to encircle Alex's still twitching shaft with her soft fingers. As it began to soften slightly she popped it back into her mouth and deeply sucked it, making Alex groan and jerk her hips.
Pausing for a second, Kara looked up at her sister. Freshly blasted semen dripped from her lips and oozed between her tits. She stuck out her pink tongue and licked the sloppy end of Alex's organ, swirling her tongue under the sensitive tip making the shaft twitch and jump. She giggled again and leaned back on her heels.
Alex's cock hung thick, glistening and half-limp before her open lips, strings of slippery ejaculate and saliva connecting Alex's throbbing cock to Kara's messy mouth.
Kara glanced down and exclaimed "Ooooo! My dress!" and quickly stood up to step out of the soft fabric bunched around her waist. She held her dress carefully away from her body with one hand as she stood before Alex. Splattered cum and saliva clung to her firm breasts and erect nipples, smeared down her abdomen towards her navel. A gooey mess of slippery gobs clung to her chin, her lips, her right cheek and across her nose. For a moment, she allowed Alex to gaze at her perfect form clad only in very skimpy white string bikini panties, white heels, a gold choker necklace, and the results of her own lust. Then she whispered, "I'll be right back" and slipped away toward the bathroom.
Alex watched Kara move away, her own head still swimming in an erotic fog. Slowly Alex gathered her wits enough to pull up her pants and move back into the living room to sit on the couch.
"Holy Fuck," Alex thought. "I can't believe I just came inside Kara's mouth. The feeling of her mouth sucking on my cock felt soooooo gooooood."
In a few minutes, Kara came back to join Alex on the couch. She had pulled on a tiny, cropped white tee shirt that barely covered her pert breasts but left her flat belly and scantily clad bottom otherwise exposed. She had tied her hair back with a white satin ribbon and washed the slippery mess off her face. She had left on her white-heeled sandals. She kissed Alex deeply as she snuggled in next to her sister on the couch. Alex's shirt was still open and Kara lightly caressed her skin and shyly whispered, "I hope you don't think I'm a slut now. I don't normally let people cum all over my face, you know." She lightly caressed Alex's tingling organ through the fabric of her pants with the palm of her own small hand. She paused and looked down at her hand cradling Alex's balls and bit her own lower lip seductively. "You're getting all aroused again already aren't you," she laughed. She traced her fingertips lightly up and down Alex's shaft as it stiffened and lifted the front of her jeans. "You're really an amazing size," Kara whispered. "How big is it anyway?" she asked impertinently.
"I don't know," Alex offered disingenuously.
"Oh come on," Kara taunted. "Every guy has measured it. You might as well tell me. I already know it's huge." Somehow it seemed juvenile to admit to measuring herself, even though Alex had, especially after her first girlfriend's neurotic reaction. Alex persisted in her denial.
