Ellen had started with feeling great sympathy for what Carla was going through-at least until she realized she was looking at her son's erection waving in the air and thinking how much she'd like to feel something like it inside herself. She and Vic hadn't had sex in several weeks; since shortly after they started arguing, in fact. While she would have admitted that she wasn't what could be called "passionate", she'd still come to miss the pleasure and release of sex more and more as the weeks had gone by. The first few times she'd looked at her naked son's equipment, she'd told herself that it was simply a normal motherly concern that her son was developing the way he should. But she kept looking more often, and for longer periods of time, and had to change her excuse to concern about what would happen to Carla if the men that had invaded their home demanded that the two teenagers take things too far. When Carla had been obliged to fellate her brother, Ellen hadn't noticed the increase of saliva in her own mouth, or that she was unwittingly doing things with her mouth and tongue as though SHE was the one with a penis in her mouth. Only when she watched Robert filling his sister's mouth with his semen did she realize that she was imagining the taste of cum on her own tongue… something that gave her no small thrill, despite the circumstances they were in.
Then Robert had been told to use his mouth on his sister, and Ellen couldn't help watching in anticipation as her children moved to comply with the demands of their captor; when her son had first touched his tongue to his sister's womanhood, Ellen could have sworn that she felt the sensation of it on her own genitals. Unbidden and unwelcome, her mind conjured up the image of Robert doing that to her, leaving her ashamed of herself-but unable to push it out of her thoughts.
She was so attentive to what her son was doing to her daughter that she almost didn't hear the man with the pistol tell her "While Junior's finding out how good his sister tastes, mom, why don't you show missy what she should be doing when she gives blowjobs? It's starting to look like dad would like that."
Glancing over to her husband, Ellen saw that his cock had indeed gotten longer and heavier, though he wasn't anywhere near having an erection. Her initial disgust that he was getting aroused was short-circuited by her shameful admission that she'd been feeling the same way.
She didn't start moving soon enough for the man with the gun, and when she saw him start to point it at her, she hurried to comply with his "suggestion". Moving in front of her husband, she knelt down on the floor before reaching out and taking him into her hand. After lifting the firm mass of his cock up, she leaned forward and took the head of it between her lips. As she started to use her tongue on him, she heard one of the men say "You're supposed to be showing missy how to give head, mom, so the idea is make him cum hard, not fast."
With her husband's cock in her mouth, Ellen could only nod her understanding before resuming her efforts. Remembering how adventurous and passionate the two of them had been when they were first married, she knew exactly what to do to get Victor erect.
Ashamed that his arousal was enough for their captors to notice, Vic felt a relief that he'd never admit to when he heard one of them tell his wife to use her mouth on him: he missed the sex with his wife more than she did, and it had been a long time…
It was a considerable pleasure and relief to him when he felt Ellen's warm, wet mouth surrounding the end of his dick. It got even better for him when she started doing the things she'd done while they were still newlyweds. Only a couple of minutes passed before she had him fully erect, and was slowly sliding her lips up and down his shaft. Closing his eyes, he tried to focus his attention on the feel of his dick in her mouth-but it wasn't long until the face he saw moving back and forth on his shaft was that of his daughter, not his wife. He managed to push the image away, but it kept coming back; each time it did, it became clearer and stayed longer… and aroused him even more, to his dismay.
Ellen could tell that Vic was getting excited faster than she'd expected, but simply attributed it to the fact that they hadn't been intimate for so long. She had her own trouble with the thought that it was Robert's cock she was sucking, not her husbands, and the inordinately higher desire she felt as a consequence.
Carla had had her eyes closed since shortly after Robert started licking her, her attention entirely on the incredible feelings he was creating. So when she opened her eyes again, and glanced over to see that her mother was kneeling in front of her father and doing to him what she'd done to Robert, it came as a considerable surprise to her. It also aroused her tremendously, since she'd had the normal crush on her daddy for years, and even masturbated to vague thoughts of the two of them "together". The angle they were at, she could easily see how long and big her father's penis was, and how it shined with saliva as her mother moved her head back and forth on the end of it. Remembering how Robert's penis had felt in her mouth, it wasn't difficult for her to imagine what her mother was experiencing… and Carla felt herself become incredibly aroused as she imagined what it would be like to be able to suck her father's erect penis herself.
His head between his sister's thighs, Robert was almost overjoyed by the sudden increase in the amount of liquids escaping Carla's vagina. Despite his focus on what he was doing to Carla, and how she was responding, he'd vaguely heard what his mother had been told to do; when he hazarded a brief look toward where his parents were, he wasn't quite as surprised to see what was going on. But he didn't find it any less exciting, and was surprised to feel his cock starting to grow again.
The next several minutes went by quietly, the silence broken only by an infrequent soft slurping sound or a restrained noise of pleasure. Ellen's mind kept toggling back and forth between visions of fellating her son and remembering that she was supposed to be pleasing her husband as best she could. In front of her, Victor was fighting a losing battle against the imagery of his daughter being the one with his hard cock between her lips, and the shame and arousal he felt from it.
A short distance away, Carla was occupied with enjoying the feel of her brother's mouth and tongue doing such wonderful things to her pussy and clit while fantasies of sucking her father's cock played through her mind… and further fueled her passions. Between her wide-spread legs, Robert was busy cycling between trying to stimulate his sister into producing even more of her nectar for him to lap up, and stealing glances over toward where his mother's head was bobbing back and forth on his father's shaft while his own penis continued to grow longer and harder.
The silence was finally broken when Vic lost his fight to keep the images of his daughter out of his mind; with a deep groan, he began erupting into the warm, wet cavity his dick was in. His release was made even more intense by the thought that it was Carla's mouth, and not his wife's, that was receiving his cum.
Even though her eyes were closed at the time, Carla knew that the sound she heard was her father; almost immediately, she knew it signalled that he'd reached his climax. Knowing that he was cumming, it was easy enough for her to imagine that hers was the mouth he was filling with his cream- particularly since she still had the taste of her brother's semen still on her tongue. The visualization of his cock spurting in her mouth was enough to push her over the edge into the strongest climax she'd ever experienced.