This is a direct continuation of chapter 2, so please consider reading it for context.
***
Eve should consider herself fortunate that her unwelcome visit hasn't been interrupted by any of the few neighbors that lived nearby. Getting caught while squeezing through a small hole in the window cut out by the tool in her hand would probably be exceptionally inconvenient to explain to them. The remarkably boring people who made up for a majority of people in this area were, luckily for her, more interested in their usual Sunday morning routine -- drinking coffee or watching TV inside their houses. The more active family living nearby, who would occasionally visit the sisters' house on the weekends was taking in the sun in their private swimming pool. That being said, a chance of someone interrupting Eve's private rehearsal was close to none. Given the faint ambiguous sounds escaping the inside of the residence from time to time, it would be safe to assume at last a few more people would share her hostile attitude towards any potential uninvited guests.
One of the main sources of those sounds was kneeling on the wooden floor, staring mesmerized at her sister's boyfriend dick. Isa wouldn't change her partners often, especially compared to her more frivolous sister, so she couldn't be sure if Tom's size was above the norm, but it definitely had at least two inches over what Mike would usually bring her to orgasm with. That rough estimation was enough to remind her how empty and needy her pussy was right now. She swallowed hard, turning her head upwards towards her boyfriend, who was still holding her tight by her leather leash. Even though he had just came in her sister's mouth, she didn't want to be caught ogling Tom.
"Ah. I guess I'll have to do as a prompter. " - Eve's sharp voice cut the silence. "I can see you can't decide who you would like to pair up with... I guess Alex's hole should be now prepared for you, Mike.". Eve knew very well what she was doing choosing this particular configuration. For an attentive observer such as her, the clash of morality and arousal growing in her prey was exhilarating.
Isa's morality was in fact fighting fiercely, second thoughts sprouting in her brain again. Despite her sexual encounter with Alex, it still felt wrong to cheat on her boyfriend with another man. Tom must've dithered about it himself, but when he saw Mike preparing himself to enter his girlfriend, something inside him broke. He knew it wasn't his choice, but the armed intruder's lying on the creamy carpet... yet he felt like he had just been challenged. And he wasn't that kind of a guy who would chicken out.
Isa's leash quickly found another owner, who dragged her a-bit-less-resisting body towards the side of an armchair, where Alex's leg was still secured tightly. Tom was even more decisive with his actions. It was either his confidence and experience in this kind of sexual encounters, or it was Isa who was becoming more submissive as the time flew. One way or the other, her sweat covered back was now pinned against the furniture, her ass barely resting on her heels, as Tom had already secured her leash around the armrest, leaving her in that uncomfortable stance. She had to flex her muscles to endure the strenuous position, indirectly presenting her lean body to everyone interested.
"Tell me you want it." - Tom said, staring right through her green eyes.
Isa felt her pussy heat up once again when she processed his request. He was so dominating and confident she felt like her opinions and moral code didn't matter. Not only because Eve was conducting the show, but because she knew Tom wasn't acting. She heard well enough through the thin wall dividing her and Alex's room to know that. He was going to use her as HE pleased, not Eve. She shivered at that sudden realization.
"Tell me you want it, you dirty slut!" - Tom shouted, grabbing her throat and choking her lightly, but just hard enough to reassure her he was being serious.
"Ugh! I... I want it.." - Isa answered, abruptly brought back from her contemplation. She didn't like the way he was treating her, but she somehow felt like she was deserving it for hesitating. Eve and this whole wicked situation was getting to her, making her dizzy. She looked back at him, unsure if he had heard her.
"I want it... I want you to use my face." - she repeated louder, shocked of and squirming at her own response. Her own body's reaction to being so dirty was still oddly new to her. She pushed out her tits that were still covered in oil and Alex's fluids, really trying to sell her acting. She almost came right there, when out of the sudden Tom pulled on her nipple, muffling her scream with his invading dick. She straightened her back as much as she could against the soft material of the chair, preparing herself for what was coming. She was thankful her hands were free, which gave her some sort of safety or comfort. It didn't last long however, as Tom quickly grabbed her by the wrists and pinned them to the armrest behind her head. Her last bastion of protection was not taken away and she heard a moan escape her throat, instinctively spreading her knees a few inches wider, allowing Tom to get even closer, pushing his rigid member further into her watering mouth.
Alex couldn't see her sister getting used by her boyfriend, but she could assemble an exceptionally vivid image of what was happening from a series of grunts and coughs coming from behind her. She heard her sister fighting for her breath every time the armchair moved a fraction of an inch. She could picture Isa's reddened eyes and tears pooling in the corners. Alex didn't know her sister that well, but she was dating Tom long enough to get a pretty fair grasp on how he likes to be pleasured. Muffled moans that managed to reach her ears were telling her that her sister was at least partially enjoying it, which was a relief in a sense.
Who Alex didn't have to project in her head was Eve. As the Isa's intensive course of deepthroating began, she quickly gave up on the passive participation. The small dildo that was moving inside her ass has been replaced by a bit bigger butt-plug in a color that was matching the carpet. Her seductive walk accented by well coordinated hips movement didn't go unnoticed to Tom and Mike, even though they were pretty distracted themselves. The lightness of her steps didn't match her personality, which Alex's boyfriend found alluring despite the circumstances. For Mike, the flawless curvature of her breasts, light abs muscles decorating her flat stomach and the lipstick covered grin was enough to remove his fingers from the Alex's pussy and replace them with his cock. It was the second time he was fucking her today and he hated to admit, but his clouded mind didn't miss Isa as much as he thought he should. Alex's gasp told him she didn't mind it at all.
"I can see my little slut is enjoying Hulk's cock?" - Alex felt soft skin of Eve's hand on her chin, as she lifted her head. She was squatting down, giving her a full view of her skinny body and waxed pussy, clearly in a state of approaching 'crescendo', as she would put it. Eventually their eyes met and the raised eyebrow of her abductor told her the answer had to be delivered.
"I... Ugh... I am enjoying it." -- for Alex, keeping a dialogue going had proved to be quite tricky, as Mike upped his pace. Her eyelids shut as another moan escaped her mouth.
