Extra Long Chapter.
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Susan and Katherine again both wore nothing to breakfast but short white robes, and again they had considerable "difficulty" keeping them closed.
Susan in particular felt much less inhibited than she'd been the morning before, which wasn't surprising given all that had happened since then. The moral reservations she'd had after the morning blowjob flew away as soon as she saw Alan come into the dining room dressed in his usual T-shirt and shorts, but with an obvious hard-on poking through.
It was like something switched on in her brain. She actually stared at his bulge and thought, I want that COCK! Mmmm! Er, I mean, I suppose it would help him if I were to... No! Dammit, call a spade a spade. I want that cock! In my mouth! Lapping against his thickness, hearing him moan with joy, tasting his hot, sweet sperm. MMMM!
When she saw that Alan was staring at her, she closed her eyes and blushed. She felt like he was reading her thoughts. But she didn't close the wide gap in her robe that nearly showed her nipples and pussy without actually managing to show either.
Embarrassed, she asked as she leaned against a doorway, "Tiger... You don't mind if I dress a little more ... casually today?"
"Um... No! Uh, not at all!" He thought, Holy fucking shit! No way! Kill me now; this is the perfect vision to hold in my brain as I go out dying! And she's my MOM!
Within a matter of minutes, Susan grew quite comfortable with her near nudity. Before long she practically became shameless about teasing him. She flashed him periodically by letting her robe fall open, allowing him to see that the only thing she had on other than her robe was her high heels.
Her feelings of guilt and humiliation never abated, and in fact they only grew thanks to the shocked looks she got from her daughter Katherine. But her desire to suck and stroke her son's erection outweighed all her reservations.
Within minutes, she found herself sitting in the chair next to Alan, slouching down in it so that her ass hung nearly off the edge of the seat. That allowed her to open her knees and robe, presenting her great boobs and even her thick bush to him as if on a silver platter. As Alan finished his breakfast, she teased him in a husky voice, "Is there anything else you'd like to eat?"
"No, I'm good for now," he managed to croak out in an unsteady voice, staring at her hair pie.
"That's too bad." She smiled, reached out and began blatantly stroking his hard-on through his shorts. "You know, a growing boy like you has a big appetite. You've been growing a lot lately - growing hard!"
Katherine was in complete shock. She'd expected another morning of teasing like what had occurred the day before, but clearly something significant had happened between mother and son in the interim and she didn't know exactly what. It was almost as if Susan were in an erotic trance state.
Susan, for her part, knew she shouldn't be touching the obvious bulge in his crotch with Katherine right there, but she simply couldn't resist. She felt like she'd gone slightly crazy and she simply was not in control of her body. She said, "I'll bet you need some more help this morning, don't you?" She squeezed the tip of his dick through the fabric of his shorts as she said this.
Alan nearly came in his shorts right on the spot, as he had the morning before.
Katherine couldn't see her mother's hand on her brother's dick because the table was in the way, but from the way Susan leaned forward, swaying her exposed and jiggling boobs, and the way her arm moved, Katherine knew full well what must be happening. In fact, she found herself strangely turned on just from seeing her turned-on mother, something that had been happening a lot in the last few days.
Susan's robe had slid all the way off her arms. As a result, although she still wore the robe, much of it was on her chair and on the floor, leaving the horny mother effectively nude from the waist up. She was ashamed to be undressed like that in front of her daughter, but her only response was to continue blushing and avoiding eye contact. She had the wildly improbable hope that somehow Katherine wouldn't realize what she was doing.
Susan would have sucked Alan off then and there if it hadn't been for Katherine sitting nearby. As it was, she couldn't resist furtively stroking his bulge through his shorts. She purred in a sultry, sexy voice, "Mmmm... Tiger... You're such a big, strong man, aren't you? Big ... everywhere..."
Her fingers were blatantly pumping up and down Alan's bulge, but she decided it would be much better if she unzipped his shorts. However, she hesitated in doing that, because she remembered Katherine was watching. Without even tearing her gaze from Alan's crotch, she asked pointedly, "Angel, don't you have to take a shower or something?"
Katherine was miffed at her mother. Normally she wouldn't have wanted to say anything to discourage her mother's sexual awakening, but her shock and irritation overrode other considerations. "I do, but I don't appreciate getting kicked out of the room. What's gotten into you? You're acting so strange. I can see what you're doing, you know. I mean, your whole top is uncovered! And your hand is... Well, let's just say that Brother looks very happy right now. Did something happen between you two last night?"
Katherine ignored the fact that her own robe had fallen off one of her shoulders as well, leaving her right breast completely uncovered.
Susan, though, was so busy staring at her son's bulging erection, and running her fingers up and down it, that she still hadn't even looked in Katherine's direction. She sighed in fond remembrance. "Yes. Something happened yesterday. I decided that it's best if I take care of Tiger's masturbation problem personally."
Alan just groaned lustily. He simply couldn't believe what was happening.
"Oh yes! I'm helping him out in a very direct way." Susan saw Katherine leaning over the table for a closer look, so she was forced to stop her stroking. However she continued to hold the bulge in Alan's pants, because she just couldn't bear to let it go. Within seconds, she found herself rhythmically squeezing it through his shorts. She couldn't stop herself even though her daughter was watching closely.
"Brother, what is Mom talking about?" Katherine asked with great concern.
Alan was nearly panicky with arousal, but he managed to explain, "Mom is helping me out now, just like Aunt Suzy. It's so great!" He closed his eyes and exulted in his glorious memories, not to mention his current erotic joy.
Susan also closed her eyes in ecstasy. "Oh yes, Angel. Your mother is helping your brother to do his thing. And she loves it!"
Katherine cried, "MooooOOOOoooom! How could you? How could you?" She wasn't upset about the incestuous aspect - far from it. Instead, she thought, If Mom is giving Brother handjobs and blowjobs now, he's not gonna pay any attention to me anymore. I'm sitting here with my breasts hanging out of this robe, and he hardly notices! What the hell am I going to do if I'm up against my centerfold mom? If I get naked and he doesn't notice me, what more can I do to attract him?!
Susan had nothing to say in response to her daughter's complaints; instead she just kept staring at her son's crotch like a crazed and starving animal. But she was tired of having to stroke it through his shorts, so she began brazenly unzipping his fly. She said eagerly, "Tiger, it looks like you need more help this very minute to reach your daily target, don't you?"
She winced as the sound of the zipper unzipping seemed to fill the room. Within seconds, her fingers closed around his exposed boner and she let out a long, contented "Mmmm!"
Alan felt like he was sweating bullets as he struggled mightily not to cum.
The unzipping sound more than redoubled Katherine's curiosity, so she leaned even further over the table to see just what was happening.
Alan saw trouble brewing between his mother and sister, especially if Katherine saw what Susan's hand was holding. Additionally, he sensed he was going to cum in a minute or less if Susan kept on stroking his exposed hard-on, and that would create all kinds of new problems. Would his mother "come to her senses" if he painted her chest with his cum? He didn't want to find out.
So he said, "I'm going to take a shower now. That'll give us all time to cool off a little." It took a tremendous amount of willpower, but he removed Susan's hand and re-zipped his pants.
She whispered in a pouty and needy voice, "Oh, poo. Please..."
But he remained firm (in more ways than one). He stood up and left.
Susan came to her senses somewhat after Alan walked away. Her hands were trembling again, and she suddenly felt ashamed of her behavior in front of her daughter. She bowed her head so she wouldn't have to look Katherine in the eye.
She pulled her robe back over her shoulders and went to the kitchen to fix herself a cup of coffee, to gain more distance from her daughter and to calm herself as best she could.
Katherine asked incredulously, "Mom! What the hell happened to you?"
Susan said from the other room, her eyes closed with shame, "Angel, please forgive my behavior. I don't know what's gotten into me. When I get close to him, I... I can't explain it. Something takes over. But if you only knew how good it feels!"
Katherine was still seething at her mother, mostly with jealousy. But she held her tongue, merely saying, "Don't 'Angel' me! I'm going to go take my shower too." However, just as she walked up the stairs and almost out of earshot, she added, "If it feels so good, maybe I should try it out too."
That doubled Susan's guilt. She felt like crying. Oh no! Could I get any lower than this? I'm corrupting my whole family. I'm a slave to my sinful desires. I'm weak. I'm hopeless. I'm so awful!
But there still was an erotic buzz running through her that stopped her from fully wallowing in her guilty feelings. In fact, she was already wondering how she could get Alan's cock back in her mouth before he left for school.
The Plummer house had two bathrooms with showers. One was just off Susan's master bedroom, while the other was across from Alan's room and next to Katherine's. Both the kids normally used that one, but when they both had to rush to school, one of them, usually Katherine, sometimes was forced to use Susan's shower.
So that's what Susan assumed when Katherine said that she had to take a shower. She didn't give it any further thought since, between her guilt and her lust, she had other things on her mind.
But Katherine went to her room and took off her robe and the hair band on her head. She planned to get naked in the same shower as Alan and at least temporarily lure him away from Susan. At the last minute, she threw on a shirt in case she was seen coming or going in the hallway, then knocked on the door of the bathroom Alan was in.
"Hey, Big Brother, I'm coming in," she said before he could respond to the knock, and then closed the door behind her.
Alan was trying to masturbate quickly within the ten minutes or so that he figured he had to shower. He was so horny that it wouldn't have taken much, but he'd only just started rubbing his erection when his sister came in. "Sis, is that you? What are you doing in here?" he asked anxiously.
She peered through the opaque shower curtain, but then boldly drew it back and got her first close-up view of his naked butt.
Alan turned his head around, his hand still on his hard shaft, and looked at his sister. She was wearing nothing but the long-sleeved white shirt she was planning on wearing to school. He could see by the way it was unbuttoned that there was nothing underneath.
At first she didn't respond to his question, but finally she said, "I have to take a shower. Mind if I join you?"
"Whoa!" he exclaimed. He rotated his upper torso towards her and in so doing accidentally turned the shower nozzle he was holding in his other hand towards her as well. Before he knew what was happening, he'd sprayed almost all of her body with water from the showerhead. "Oops! Sis, what are you thinking?! You're my sister!"
"Oooh, Alan," Katherine said with delight, in a sensual tone of voice. "You're making me all wet!" She was even more delighted when she looked down at herself and saw how transparent the water had made her shirt. She was pleased that her brother could see all of her hairy pussy, and not just the part visible in the crack between the tails of the shirt.
"Don't say that!" he protested.
"But isn't it true? That you've made me all wet? You don't know how true that is, Big Brother, how wet you've been making me lately. Everyone's having fun with you but me. You say I'm your sister, but what about you and Mom? That family relationship doesn't seem to be slowing you two down."
Then, acting coy, she placed her hands over part of her boobs, making sure not to cover her nipples, and asked, "You're not looking at my naked body, are you?"
"Um, no... Well, yes ..." He was so nervous that he accidentally turned and hit her with more water, which only made her look even more tempting.
He exhaled heavily and tried to control his raging desire. He put the shower nozzle back on its hook and finally took his hand off his erection. Then he saw how lewdly his rod poked out towards his sister and immediately tried to cover it with both hands. He was all flustered, and his heart was pounding hard. "Um, never mind about me. You're not supposed to be in here! What about the other shower?!"
"I like this one better," she said as she lifted her left leg and placed it on the edge of the bathtub. The unbuttoned shirt opened wide as her hips spread, giving her brother a completely unimpeded view of her bush. "Mom left you hanging there at breakfast. I could see what she was holding and stroking. You want me to finish what she started and make you feel all better?"
He thought, Oh, man! Sis! I can't get involved with her. I mean, sure, she's totally sexy, but she's my sister and I love her. But then again what am I doing with Mom? Oh damn! Why now? I'm too horny to resist anything!
"Wait! Wait!" he exclaimed in a quiet but insistent voice. "You can't come any closer! What about Mom? She'll totally know!"
She placed one foot fully into the bathtub and put a hand on his hip. "Not if we're quiet. Or, what if you just let me watch what you're doing, from here?"
"But if she comes down the hallway to check on us, she'll be expecting to hear the sound of two showers running. It's too risky!"
"Damn. I hadn't thought of that. Okay, Bro, I'll go, if you promise that we can finish what we started here later."
"Sis, do you realize what that means? Brothers and sisters aren't supposed to-"
She interrupted him. "Hey, I'm just trying to help out with your medical condition. Besides, how can you say that after what you've been doing with Aunt Suzy?"
"But she's not my real aunt," he protested weakly.
"You're right; she's more your mom than your aunt. But that's even less of an excuse. Come on! I just want to help like she's helping. Do you want some doctor-approved stimulation from me or what?"
He was torn. "Man! Please don't tempt me like that!"
She smiled. "All right, I'll go now. But think of me while you're doing your thing." She grabbed a big towel, wrapped it around herself, and returned to her room to dry off.