Author's Note: Continues after Fucking My Girlfriend's Aunt. Go read that one first if you don't want to be lost. Contains lots of futa on female, a bit of lesbian incest implications but nothing explicit yet.
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"W-who is that? Zoe?" Arabelle shouted from over the sound of the running water, a bit of surprise and fear in her voice.
Jade was silent. Her plan was to barge into the shower that her girlfriend's sister was occupying and have her way with the woman. Despite Zoe's insistence that Arabelle would go along, she was still hesitant of overstepping some boundary.
"What do you need Jade? Can you give me a minute?" Arabelle asked, covering herself up a bit. Jade could still see her figure through the glass as her comment interrupted her train of thought.
Arabelle continued looking at the futa, unsure at this point both what Jade needed from the bathroom and also why she was being so weird. This continued to unnerve Jade, who somehow still had to convince herself that this was the woman who wanted to get fucked rough and hard by any futa she came across.
Instead of replying, or, worse yet, trying to force herself into the shower, Jade reached down to her shorts and pulled them down ever so slowly. The two made eye contact through the frosted shower glass, and though Jade couldn't tell for sure, she could feel Arabelle's eyes following her hands as she continued to pull her shorts further and further down her legs.
Neither woman said anything. By the time Jade's shorts got about to her knees, her full, gargantuan dick was finally fully out on display. It was hard as Jade thought about Arabelle's body, but not quite rock-solid due to her continued doubt.
Jade eventually dropped her shorts to the floor, putting both women on equal-footing. For a few seconds, everything was still - both women eyeing each other wordlessly. Then, finally, Arabelle broke the tension. She lowered her arm that covered her nipples, allowing the futa to see them through the glass. Her tits were somewhere between Naomi and Zoe's, a good size but not massive.
Her other hand that was covering up her pussy began moving, and she started rubbing it slowly. She stared down at Jade's 10 inch womanpleaser, continuing to masturbate in silence.
Jade felt her confidence spike. She slowly began stroking her cock at the same time, and the two watched each other for a minute or two. By the end of it, they had both picked up a bit of speed, and were more clearly aroused as their panting sounds had become audible to each.
While this was happening, Zoe was sitting just outside the bathroom door, her hand down her sweatpants. She was perplexed by the silence - she would understand if her girlfriend pussied out, or if she did indeed force herself on her sister, but it sounded like neither was happening. Still, she rubbed her clit in anticipation, hoping for the latter to somehow still occur.
"Turn around," she finally heard Jade command from inside the room. Zoe nearly came right there on the spot.
Arabelle obeyed, and turned around in the shower, giving Jade a full view of her back and ass. She continued fingering herself, and spread her ass a bit with her free hand. Jade's cock was now as hard as it was going to get, and she knew she had won her challenge.
"Bend over," she continued. Without hesitation, Arabelle did as instructed, putting both of her hands against the shower wall and letting the futa get an even better view of her incredible ass.
Finally, after probably the strangest foreplay either party would ever have, Jade rushed forward, sliding the shower door open. Arabelle looked over her shoulder at the woman and could only mutter a hushed "Please..." before having Jade's entire dick shoved inside of her.
Both women yelped at the sudden rush of pleasure. Jade placed her hands on the woman's hips and started pushing and pulling them to her rhythm, not giving Arabelle much of a say in the matter. Arabelle was in shock at what was happening, both by the surprise of the actual experience but also the sheer length and girth of her sister's girlfriend.
Remaining motionless except for hips shaking out of her control, Arabelle moaned at the intense pleasure she was receiving. Jade's grunting and gasping complimented it, as the two continued fucking in that position.
Jade didn't have unlimited energy, but she was often able to fuck numerous times in a day - and she already had at this point. But Arabelle's pussy set a fire in her and gave her a huge burst of stamina. She dug her nails into Arabelle's hips and ass, and continued jackhammering the poor woman with all she had.
Outside, Zoe was a sopping mess, as she imagined her sister being impaled by her girlfriend's cock. Despite her best efforts, she let out a few moans here and there, in addition to the sounds her pussy was making as she dug her fingers into it.
The noise of rough shower sex and the obvious masturbation from right outside of the bathroom did not go unnoticed. Zoe and Arabelle's aunt Naomi was still home in the living room, and had a pretty good idea what was going on just from the sound. She felt herself dampening as well, replaying the moments from earlier that day over and over in her head. She wondered if it was a one-off ordeal, or if Jade would continue to want her. She could tell that Jade was fucking Arabelle and hoped she would be so lucky as to be penetrated by the futa as well. She felt her own nipples a little, making them harder, before pushing her thong aside and feeling her wetness.
"You like that, you fucking whore?" Jade moaned as she slapped Arabelle's ass hard enough that the whole house could hear it.
"Yesss...." was all Arabelle could squeeze out. She wordlessly continued moaning, even screaming when she felt Jade's dick hitting cervix occasionally. Jade closed her eyes and held onto Arabelle's hips tight, coercing her into an even faster rhythm.
All four women in the house were flushed, nearing orgasm from the scene that was unfolding in the shower. Zoe felt like she was going to explode with pleasure - she had already been going crazy for the last 24 hours at the thought of her girlfriend fucking her best friend and throat-fucking her aunt, but this was even further. Naomi wanted to get up and see what she could see, but remained on the couch, nervous of instigating anything further (especially knowing her role as a slut). Arabelle was in heaven; her dirtiest fantasy unfolding before her, in an even sexier way that she could have ever imagined. And Jade was, of course, enjoying pounding away at the submissive beauty, who was much tighter than her girlfriend due to being a virgin when it came to futas.
Unsurprisingly, it was Arabelle who came first - and even though she was still under the shower water, it was easy for Jade to tell that she did, as her juices poured out of her, coating Jade's huge member. The extra lubrication sent Jade over the edge, as she dug her nails even further into Arabelle and pulled her as close as possible, shooting her cum against her cervix. The two moaned in ecstasy, alerting the whole house of their climax.
Knowing that her girlfriend had either came inside or on her sister was too much for Zoe. She felt her whole body explode into bliss, soaking her hand and her pants. The smell and sounds of sex were present all around her.
Naomi had only been lightly pleasuring herself, and didn't bring herself to climax - though she did hear the rest of the house get there. She bit her lip and stopped what little stimulation she was giving herself, figuring that she would probably finish later in bed that night.
Jade and Arabelle stood in the same position under the hot running water, paralyzed by pleasure but also by the awkwardness of what to say or do next. Jade's cock slowly shrank to a more manageable size and she released her vicegrip on her partner.
"I uhh... hope that wasn't too much for you," Jade stuttered, a little embarrassed by how little control she seemed to have over the situation.
"...Can you do that to me again sometime? But rougher?" Arabelle asked after a brief silence. Jade's dick jerked a bit at the thought.
"I- yeah, of course. Do you want me to..." Jade started, but was interrupted.
"I don't want you to tell me, I don't want you to see you. I want you to take me and have your way with me and leave me like you found me," Arabelle clarified, still not moving her hands or the rest of her body.
Jade took the hint and pulled out. A trail of semen flushed out of Arabelle's pussy before vanishing among the water of the shower. She awkwardly pulled away, getting a few last glimpses of her girlfriend's sister, before opening the bathroom door.
Zoe bolted up as she heard the door opening - she'd almost fallen asleep hunched against the wall in her state of post-orgasmic bliss. Jade realized that she'd forgotten to grab her shorts, and that her dick - still semi-erect, and coated with both her and Arabelle's cum, was in plan sight.