Back across the hall, Susan kept up her passionate sucking. She wanted to say really sexy things to Alan, but her mouth was too full, so instead she let her thoughts run free. As a result, she said more honest things to herself than she would have been willing to say out loud.
Look at your mommy, Son! She's such a slut! She just loves to suck your cock! Mmmm! God, I don't know what it is, but I just love this shirt too! And when you told me to put my hands behind my back to make it look like I was tied up and helpless - that makes me SUPER hot! Somehow the combination makes me feel like I'm some kind of tit slave. Mmmm! "Tit slave." I love the sound of that! I don't know what the hell is wrong with me, but I adore the idea of being your slave! Tiger! Mmmm! I'm forced to serve my son's big fat cock!
Normally, Susan kept her eyes down while cocksucking, mostly out of a continued sense of embarrassment. But now she looked briefly up towards his face. Look at your mommy suck your dick! Mmmm! She's your sex slave! She's your cum slut! MMMM! Her body is for your hands only, my darling boy! Ron, that cheating bastard, will never get so much as a kiss on the cheek from me again, not if I can help it! Tiger, you might as well be my husband, because you're the only man who'll ever get my love now.
Oh God. Alan, my husband! That makes me so HOT! Mmmm. MMMM! Yum!
That thought made her go to town on his cock even more than before. She tried to take him deeper and deeper, but she couldn't overcome her gag reflex, so each time wound up choking until she pulled back. But she wasn't deterred. She decided for finesse instead, going all out on his sweet spot. Her lips rhythmically slid up and down over it with great suction, often with a corkscrew twist. At the same time, her tongue flitted against it whenever her lips weren't on it.
She could tell her new approach was effective because of his increasingly loud and almost pained groans.
Mmmm! That's music to my ears! You like that Tiger? Is your tit slave mommy wife making you feel good?
She convulsed all over as she savored the words "tit slave mommy wife." She had an orgasm just from the thought, without actually realizing it at first, because she wasn't even touching her pussy area. She was so high on lust already that a small orgasm like that was only like a minor peak.
The convulsion caused her to lose her rhythm, but not for long. As she resumed her steady bobbing, she thought, I can say that to myself, but not to him. It's so WRONG, a mother thinking about marrying her own son. I can't go there. I suppose I shouldn't tell anyone how hot I get thinking of myself as his tit slave. I have to just focus on his cock instead, his glorious cock. Mmmm! If I can't be your wife, I'll be your permanent, personal nympho cocksucker! Just licking it, it's better than sex!
Look at my slutty mouth! I know your special spot, and I never stop stimulating it. Mmmm. You like that? You like it when I slide my lips up and down against it? Mmmm! You do, I can tell!
Her thoughts returned to the open door. Why did Angel leave the damn door open? She knew what I was going to do in here. Anyone could walk by and see me here with my lips sliding up and down my son's big tool. It's so humiliating to be on public display like this, in my high heels and naughty shirt with my big tits hanging out! Does she want to watch? Is she going to walk in and watch? Oh God! What if I have to give Tiger blowjobs right in front of her? And everybody else?
That idea sent a shiver of excitement down her spine. Am I that depraved? That desperate for cock? Am I just a hopeless, exhibitionist, cocksucking slut? YES! Yes I am! Do I even want her to watch? I do! Come look, Angel! I'll show you how a loving mommy does it. Mommies are the best cocksuckers, because we love our sons so much! Your mommy is a cock-slave cum slut for your brother's fat fuck stick!
These ideas excited Susan so much that she started orgasming again. Except this time she didn't have just any ordinary climax - her whole body trembled so violently that she had to take her mouth off his hard-on briefly until she could calm down some. Then she screamed out loudly. She knew Katherine would hear her, but she was unable to control her outburst.
Although her body was still experiencing minor aftershocks from her great climax, she renewed her attack on her son's boner with increased vigor.
He was stunned at just how powerful her obvious climax had been. He knew she couldn't have been touching herself at the time, because he had been feeling both of her hands fondling his dick and balls. What he still didn't fully understand was that she very literally enjoyed blowing him as much as he enjoyed being blown - in other words, a great, great deal! She always had orgasms of her own while doing him.
Katherine heard Susan's scream, which sounded so arousing that she very nearly cried out herself. She'd already put her pen and diary down so she could focus completely on masturbating, but curiosity got the best of her. Fuck it! Damn the risk, I just HAVE to see what's going on in there that made her scream with such total euphoria!
She walked across the hall wearing nothing, since she'd taken off her shorts and T-shirt to play with herself. Her pussy was very wet. She reached Alan's doorway and peeked in. To her disappointment, she didn't see anything unusual except for the sight of Susan kneeling half-naked, sucking Alan's turgid erection. Admittedly, that was a heart-stoppingly exciting sight for her to see, but it wasn't unusual in the sense that it didn't explain why Susan had been screaming in such an out-of-control manner.
Hmmm, Katherine thought. I guess she just really, really likes doing that! Well, I can relate. She giggled out loud.
She'd just wanted to take a peek and go back to her room to masturbate some more. But Alan heard her giggling, looked up, and saw her.
Seeing that she was caught, she figured there was no point in sneaking away. Instead she boldly walked into the room and gave her brother a friendly wave.
Susan was so into her cocksucking that Alan had great latitude in communicating with Katherine as long as it was non-verbal. So he made a sour face and waved his arms frantically, as if trying to shoo her out of the room. When that didn't have any effect, he mouthed the words, "Go! Go! Go away!"
But Katherine was having too much fun with his pantomiming. She put a hand to her ear and pretended not to hear.
He rolled his eyes and tried waving his hands some more. When that didn't work, he threw his hands up in frustration and sighed.
Then he lost track of Katherine, because Susan tried out a daring move on his dick involving lightly scraping it with her teeth. It was so effective that he had to close his eyes and squeeze his PC muscle repeatedly to hold back his climax.
Katherine saw his obvious close call and was impressed. My God! I know it's not exactly considered a skill, but if anyone is good at getting his cock sucked, he is. I mean, look at what Mom is doing. Heck, just look at Mom, period! I should be jealous, but when I look at her doing that all I get is HOT! I can't even see Brother's cock or Mom's face; all I see from the back is her bobbing head and swaying ass. But just from that, I can tell she's soooo into it! How can I not feel inspired and want to take turns with her?
Katherine hadn't consciously done it, but somehow one of her hands was pulling on a nipple while the other one frigged her cunt. Would you like that Brother? Would you like Mom and me to take care of your cock together? 'Cos I would fuckin' LOVE it! Maybe I should make some noise so Mom'll hear. Hell, I bet she won't even blink! Maybe I-
Her thoughts were interrupted because she noticed that Alan had recovered enough from Susan's relentless rhythmic cock attack to look up again. His eyes went wide to see that she was masturbating and totally nude. He started waving his arms frantically once again.
Katherine giggled, but Susan was slurping and sucking so loudly and intently that she didn't notice. Silly Brother! What's the problem? Let Mom catch me again. It'll just speed things along that much faster. Besides, I'm already busted, so how much more busted can I be?
Alan switched from waving his hands to making an abject begging pose with his hands clenched together in prayer. At the same time, he looked at her so beseechingly that she couldn't resist.
Dammit! This is so much fun! But I suppose he has a point. After Mom caught him with Aunt Suzy the other day, and then what happened with me earlier, there's no telling how she could react. She could have one of her total anger freakout moments for all I know. She might even relapse to the old prude-mom. Darn. She reluctantly retreated back towards her own room.
Alan was under a great deal of mental and physical strain. He'd used his ever-increasing control over his PC muscle to hold out for what seemed to be an incredibly long time, because the feelings were so intense and good that he never wanted them to end. In fact, it had actually been only a few additional minutes, but given how passionately Susan was working his cock, it was an impressive display of stamina just the same.
One big reason he was struggling with all his might not to cum was because he feared Susan would look around once he'd shot his load and see Katherine standing there. But now that she had gone back to her room, he ended his resistance. With a long, satisfied grunt, he let go and started to fire.
As his ropes pulsed to the back of Susan's throat, she had yet another awe-inspiring climax of her own. Inspired by what she'd seen earlier with Katherine, she'd been planning to let him do it all over her face. She wanted Alan to spray his sister's and mother's faces with cum in the same evening. She didn't know why, but the idea really aroused her. But with his pulsing erection in her mouth, she found she just couldn't let it go, so she ended up swallowing nearly his entire load.
Only at the end, when his boner was squirting its last weak shots of cum, did she finally take it out and let some of his seed splatter on her face. She rubbed it all over her cheeks, leaving slimy trails of cum here and there. She loved both the sensation and the idea, leading her to wish that she'd done more of that because it made her feel like he'd marked her as his possession.
Even that wasn't quite the end, though. She licked his penis and balls completely clean, continuing until long after he'd gone flaccid.
At one point, Alan looked up and noticed Katherine was again standing in her doorway, looking across the hall to see what was happening. He frantically and silently continued to shoo her away until she appeared to be completely out of sight.
