Watcher12/18/2025, 5:46:05 PM

Alyx is riding you hard. She loves it on top, and you love it anywhere with her. A small gasp gets your attention, and you see your sister, Felicity, peeping through the door. When she realizes she's been caught, she turns and runs away.

"What's wrong?" Alyx asks when you suddenly seem very obviously distracted.

"I just saw Felicity watching us through the door."

Alyx looks at you like you're joking before she climbs off of you and pulls on a sleepshirt. "Let me go talk to her."

You lie in bed trying not to be irritated when eventually Alyx comes back with an odd look on her face.

User#176526107791212/30/2025, 6:17:08 AM

"So, what did our little voyeur had to say?"

Watcher12/30/2025, 6:17:08 AM

"Well," Alyx says hesitantly, "she wants to watch us... you know." She bites her lip and looks at the floor. "She also said she'd do anything."

You raise an eyebrow, amused despite yourself. "And?"

User#176526107791212/30/2025, 6:18:52 AM

"That's... strange, but maybe she's just curious." I look at Alyx. "What do you think?"

Watcher12/30/2025, 6:18:52 AM

Alyx shrugs. "I mean... it's kinda hot," she admits with a grin. "But I don't want her to get any ideas." She glances over at you meaningfully.

User#176526107791212/30/2025, 6:21:37 AM

"Yea, the idea of being watched is exciting,but... my sister?" I think for a moment. "On the other hand, I don't know if we would have the guts to ask some stranger."

Watcher12/30/2025, 10:10:05 AM

"Exactly! The thrill of doing something forbidden with someone familiar..."

User#17652610779121/8/2026, 5:43:42 AM

"OK, let's invite her in,"

i smile at Alyx wickedly.

Watcher1/8/2026, 5:43:42 AM

Alyx grins back, clearly catching on to your plan. "Felicity?" she calls out. "You can come in now."

After a moment of hesitation, Felicity pokes her head back into the room. She's wearing a nervous smile and her cheeks are flushed. You can tell it's taking everything in her power not to look at you like she wants to.

User#17652610779121/8/2026, 5:45:57 AM

"Come in, don't be nervous now. We agreed you can watch if you want to," I smile at her and start fondling Alyx's breast in my hand.

Watcher1/8/2026, 5:45:57 AM

"Yeah..." Felicity says, still looking unsure. She glances nervously between you both as she steps into the room and shuts the door behind her. "I-I just... I mean, it's not like I was expecting to find you two doing that!" Her face turns even redder at the thought.

Alyx crawls onto the bed next to you, grinning mischievously as she wraps an arm around your waist and begins kissing your neck. "It's okay,"

User#17652610779121/8/2026, 5:47:23 AM
Continue
Watcher1/8/2026, 5:47:23 AM

Felicity glances between the two of you again before she finally nods slowly. "Yeah," she says softly, her voice barely above a whisper. "It is kinda hot..." Her gaze returns to your fingers teasing Alyx's breast as her own hand begins to slide up and down her thigh.

You can see the conflict in her eyes; she wants to watch, but she doesn't want to cross that line with you... or maybe it's just that she never expected this kind of reaction from herself?

User#17652610779121/8/2026, 7:53:56 PM

I pretend Felicity isn't there and kiss Alyx passionately while still fondling her boob.

Watcher1/8/2026, 7:53:56 PM

Felicity lets out a quiet gasp at the sight of you and Alyx kissing so passionately. Her hand moves faster as she begins to rub herself through her panties, moaning softly into her fist. She's getting closer... But will she cross that line? Will she admit how much she wants this? Or will she keep denying it until you both give her permission?

User#17652610779121/9/2026, 4:56:38 AM

Still kissing Alyx, I open her legs to give Felicity a good wiew of her pussy as I start circling my finger around her clit.

Watcher1/9/2026, 4:56:38 AM

A soft moan escapes Felicity as she watches you touch Alyx. Her own fingers move faster now, her body arching into the sensation as she edges closer and closer to release. She can feel it building inside of her; the need to admit how much this turns her on... But what will happen after? Will she be able to handle knowing that you both know?

User#17652610779121/9/2026, 4:58:58 AM

"Do you like this, Felicity,"

Watcher1/9/2026, 4:59:25 AM

Felicity bites her lip as she watches you touch Alyx. Her own fingers are moving so fast now that it's almost a blur against her skin. "I-I don't know..." she whispers, her voice barely above a breath. "It's just... I never expected this."

She glances up at you, searching your eyes for some sign of understanding or approval. But what she really wants is for you to tell her it's okay; that she can admit how much this turns her on.

User#17652610779121/9/2026, 5:00:54 AM

"Admit you like it, it's okay..." I spread Alyx's pussy with my fingers.

Watcher1/9/2026, 5:00:54 AM

Felicity lets out another soft gasp as she sees you open Alyx up. The sight sends waves of pleasure through her body, making her back arch off the bed slightly. Her fingers are rubbing furiously now, her breathing coming in short, shallow pants.

"Oh god," she moans softly, her cheeks flushed red with arousal. She's so close... Just one more little push might send her over the edge. But she hesitates, still afraid to fully let go.

User#17652610779121/9/2026, 1:23:01 PM

I continue spreading Alyx's lips and rubbing her clit. "Say it, Felicity, say what you like seeing..." I smile at her.

Watcher1/9/2026, 1:23:01 PM

Felicity glances between the two of you again, her chest heaving with each ragged breath. The desire in her eyes is unmistakable now; she wants this as much as Alyx does. But it's still so hard for her to admit it out loud...

Finally, she whispers, "I like seeing you two together." Her voice cracks slightly on the last word, and a shudder runs through her body as she comes, arching into her hand with a soft cry.

User#17652610779121/9/2026, 1:24:22 PM

"Good girl... now watch this," I offer my dick to Alyx's hungry mouth.

Watcher1/9/2026, 1:24:52 PM

As soon as your cock is within reach, Alyx eagerly takes you into her mouth, sucking hard and moaning around you. Her body trembles with pleasure as she feels the head of your cock brush against her spot just right. She looks up at you with a mix of desire and affection, their eyes meeting in a fiery exchange.

Meanwhile, Felicity is still catching her breath from her orgasm, but she can't help but watch Alyx with fascination.

User#17652610779121/9/2026, 1:27:04 PM

I look into Alyx's eyes as she continues to suck me, I know she likes eye contact while having sex, and put my hands on her head to help her take me deeper. Then I glance at Felicity.

Watcher1/9/2026, 1:27:23 PM

Felicity flushes even deeper red when she realizes you're looking at her. Her gaze darts between the two of you, and she can feel a blush spreading across her chest as well. She swallows hard, the sight before her making it difficult to think about anything else.

As Alyx continues to pleasure you with her mouth, Felicity's own desire begins to build once more, the forbidden thrill of being this close to something so taboo.

User#17652610779121/9/2026, 1:32:11 PM

"Now, let me return the favor, Alyx,"

I pull out my cock out of Alyx's mouth and smile at Felicity.

"Do you think I should lick her?" I ask, but without waiting for an answer I spread Alyx's legs, so that Felicity gets the full view.

Watcher1/9/2026, 1:32:35 PM

Alyx lets out a soft moan as you pull your cock away from her mouth, but she doesn't seem upset about it. In fact, she seems to be enjoying the show just as much as Felicity is. She watches with bated breath as you spread her legs wide and present Felicity with the view of her wet, swollen folds.

Felicity blushes even deeper at the sight, her hands trembling where they rest on her thighs.

User#17652610779121/9/2026, 1:34:14 PM

"So, Felicity? Do you want to see me lick my girlfrieds pussy?" I tease her while slowly lowering my head towards Alyx's wet entrance.

Watcher1/9/2026, 1:34:14 PM

Felicity bites her lip as she watches you move closer to Alyx. Her gaze darts between the two of you, the desire in her eyes impossible to miss now. Finally, she nods slowly. "Y-yes," she whispers, her voice barely audible above the sound of her racing heart. "Yes... I do."

User#17652610779121/9/2026, 3:24:10 PM

"Then watch. You can come closer to get a good look," I smile at her michievously and positioned between Alyx's thighs I start kissing her pussy lips softly.

Watcher1/9/2026, 3:24:10 PM

Felicity swallows hard as she watches you kiss Alyx so intimately. She can feel herself growing wetter at the sight, her own arousal undeniable now. Taking a deep breath, she carefully moves closer to get a better view. Her heart races in her chest as she sees your lips and tongue teasing Alyx's folds, making her moan softly into the sheets.

"Mmm... yeah,"

User#17652610779121/9/2026, 3:25:06 PM

I circle my tongue around Alyx's clit before catching it between my lips.

Watcher1/9/2026, 4:11:58 PM

Felicity watches with bated breath as you suck on Alyx's clit, her eyes widening at the sight. She can feel herself growing even wetter between her legs, her own desire building to a fever pitch. "Oh god," she whispers, her hands trembling where they rest on her thighs.

She glances briefly over at you before looking back at Alyx, her heart racing wildly in her chest. The forbidden thrill of this situation is almost too much to bear...

User#17652610779121/9/2026, 4:14:45 PM

I continue to please Alyx with my tongue, sticking it deep in her dripping pussy and savoring the taste of her juices.

Watcher1/9/2026, 4:14:45 PM

Alyx moans louder now, her hips bucking against your face as you eat her out expertly. Felicity watches, completely captivated by the scene unfolding before her. She can see every flick of your tongue, hear every gasp and moan from both of you. Her own body is on fire with arousal; she's so turned on that she can barely stand it anymore. But what will happen next? Will she be able to resist the temptation to join in... or will she finally give in to her desires?

User#17652610779121/9/2026, 4:16:21 PM

I move my tongue lower and start circling my tongue around Alyx's butthole.

Watcher1/9/2026, 4:18:08 PM

Felicity's eyes widen further as she watches you switch focus to Alyx's other sensitive area. A shiver runs down her spine, imagining how it must feel to have such intimate attention paid there - especially by someone who clearly knows exactly what they're doing. Her own ass twitches reflexively, and she has to bite back a moan at the thought. It's all becoming overwhelming, and yet somehow, she finds herself craving more rather than less. As if unable to stop herself, her left hand slides downward until her fingertips brush lightly against her clothed mound.

User#17652610779121/9/2026, 4:20:38 PM

"Yea, Felicity, go ahead... rub yourself, you little voyeur," I say between licks, then get up and place my cock to Alyx's entrance.

Watcher1/9/2026, 4:21:50 PM

Felicity freezes, unsure if she wants to indulge in this fantasy or not. For a moment, she hesitates and looks away, pretending to lose interest in the scene unfolding before her. She tries to calm down, taking deep breaths and telling herself she's being ridiculous.

But then she feels a gentle touch on her leg from behind, her heart skips a beat as Alyx gives her foot a soft caress. This is too enticing to resist anymore. The forbidden thrill of watching this intimate act has become just too much to bear.

User#17652610779121/9/2026, 4:25:20 PM

I enter Alyx and watch Felicity intently.

Watcher1/9/2026, 4:25:20 PM

Alyx arches her back, a soft cry escaping her lips as you enter her fully. Felicity watches, mesmerized, as the muscles in Alyx's thighs tense and release with each thrust. She can see the raw pleasure etched on Alyx's face, and it sends a jolt of electricity straight to her core.

Tentatively, Felicity follows your suggestion and lets her fingers trail down her stomach until they reach the waistband of her pants. With shaking hands, she slips them beneath the fabric, finding herself already soaked with arousal.

User#17652610779121/9/2026, 4:26:58 PM

"Yea, that's it," I say as I start fucking Alyx hard. "What do you think, my love, do you like being watched?"

Watcher1/9/2026, 4:26:58 PM

Alyx's eyes flutter open, meeting yours with a look of pure bliss. "Yes... god yes..." she gasps between moans. Her hips buck up to meet each thrust, completely uninhibited now. "It makes me so hot knowing she's watching..."

She glances over at Felicity with half-lidded eyes, a sultry smile spreading across her flushed face. "Don't just stand there, baby. Touch yourself for us."

User#17652610779121/9/2026, 4:30:56 PM

"And don't be secretive, take down those panties show us your wet treasure."

Watcher1/9/2026, 4:30:56 PM

Felicity blushes deeply at the request, but her hand is already moving past her waistband at lightning speed, shoving her underwear aside. She gasps softly as her fingers encounter slick folds, already swollen with desire. The sight before her has pushed her right to the edge - all it takes is one touch against her clit to send her tumbling over.

With a sharp cry, she comes undone, knees trembling as pleasure crashes through her body in waves. It feels even more intense than anything she's ever experienced alone.

User#17652610779121/9/2026, 4:34:54 PM

"That was quick," I smile at Alyx and continue fucking her. "Do you want to show her something more now," I look at Alyx Mischievously.

Watcher1/9/2026, 4:39:53 PM

Felicity's eyes are still closed, her body trembling from her sudden climax. But as soon as you ask the question, they snap open, a haze of confusion and guilt lingering on her face. She looks at Alyx, who's still bucking beneath your thrusts, her expression softening into a mix of curiosity and hesitation.

The scene unfolding before her is no longer about just watching; it's about participating, sharing this taboo experience. Felicity's gaze falls back onto you, her heart racing with anticipation. She wants to know what you have planned next...