Yes. Finally fucking your sister.

Those words are enough to bring your cock back to life, getting a giggle out of Shelly.

“Are you sure?” You ask.

Vivian nods. “It’s only fair that you go all the way with Shelly, right?” She clears her throat. You watch as Shelly gives Vivian a big hug from behind and whispers something on her ear with a big smile before both start taking off all their clothes.

A part of you still thinks this is a dream. Two, gorgeous naked goddesses are on your bed, and they’re all yours, you think selfishly. Your girlfriend Vivian, with her slim, athletic, hourglass body, generous chest, red hair and shy, but at times surprisingly forward personality. Your sister Shelly, with her enthralling curves, voluptuous breasts, blonde hair and her teasing, playful approaches. Looking at your relationships with them now, it’s hard to believe there was a time not long ago when it was difficult to get along with them.

Your dick is painfully hard once again, no doubt a result of this incredible situation.

Shelly begins crawling towards you with the most intense bedroom eyes you’ve ever seen. She licks her lips hungrily, closing in the distance until she’s in her knees in the bed, face to face with you.

“It’s finally time, little brother.” She whispers sultrily in your ear. You can hear the eagerness in her voice, even as she tries to calm herself. “I’m yours now, completely yours. Do me however you want.” She says, slowly unbuttoning your shirt, planting wet kisses on your neck and shoulders as she does. “You can be as gentle or as rough as you want. Do you want to be on top, or would you rather I do all the work, doing everything I can to make you feel good? You can do me from behind, too, and drive that marvelous cock as deep inside me as you can.”

Her dirty talk and tender caresses threaten to make your mind go blank.

“Turn around and get on all fours.” You whisper back, and Shelly is all too happy to oblige. She does as told, and takes her hands to her rear, spreading her glistering, pink pussy for you.

“Fuck me, John.” With those last, amazing words, you lose all self-control.

You hold Shelly’s waist and unceremoniously drive your cock inside her hot, welcoming pussy, earning you a loud scream of ecstasy from your lover. As easy as it was to slide in, it’s like Shelly’s cunt doesn’t want to let you go. It tightens around you in the most amazing of ways, making you very aware that your cock in indeed inside your sister.

“Oh my God!” Shelly gasps. “I can’t believe this is happening!”

You start moving, slowly pulling out and roughly pushing your cock inside. Shelly’s body jerks every time. She screams in pleasure, lost in the bliss of a dream come true.

“Yes! Yes! So good, so gooood!! FUCK!”

You’re a bit scared that someone will hear her, but you remember that you don’t have any adjacent neighbors, so you’re happy to let her go wild.

Vivian has dropped any pretenses that were left and is happily masturbating at the sight of you and Shelly fucking. With her legs spread wide, fingers deep inside her dripping pussy and free hand massaging her tits, she makes for an amazing sight as you keep pounding Shelly’s hot cunt.

You feel like you’re about to cum, but you don’t want this to end just yet. You pull out of Shelly, an she looks at you with a disappointed face.

“Lay on your back.” You tell her.

When she does, you slide two fingers inside her pussy, moving just as she likes it, trying to buy yourself a little time to rest. You dive to her chest, taking one of her nipples in your mouth and sucking hard.

“Oooh! John!” Shelly’s back arcs. She grabs your hair and pulls on the bedsheets.

That’s enough rest for you. You stop fingering and drive your cock inside her once more, thrusting with all your strength, groaning and moaning loudly as you do. Shelly takes your hand, wet with her own juices and starts sucking on your fingers, her eyes locked on yours.

That does it. You explode inside her, filling her with cum. Her loud scream as she climaxes along with you is muffled by your fingers in her mouth, which she’s sucking even harder.

You collapse on top of her, your chests pressing against each other. You’re both breathing hard, yet Shelly puts her hands at either side of your face, pulling you into a sloppy kiss, which is more her licking your tongue than anything else.

“Even better than I dreamed it would be.” Shelly says with her ragged breath and a radiant, satisfied smile. “You were amazing bro.”

You suddenly remember that Vivian is watching, and turn your eyes to look at her. It seems she’s coming down from the high of her orgasm, as well.

“I didn’t think just watching could be so hot.” Vivian admits, staring at the image of you laying on top of your sister.

“I’ll watch next time,” Shelly tells her. “Or we can do it all three at the same time. Your call.” Shelly smiles excitedly, and Vivian can’t help but mirror it.

For your part, you just can’t believe this is actually happening.