she's not coming alone

"She's bringing our niece Ella with her." Carrie says, again delivering the news almost casually, as if it doesn't ruin your plans completely.

You try to process this. But it's not working. "Wait... who?"

Carrie giggles. "Our niece Ella. I told you I have a much older brother before. Well he has a daughter. She's 18 and she wants to come with Cassidy so I can take her to tour the University in case she decides to go there. Hell Cassidy probably invited her thinking it would be a good way to get me out of the way for a day so the two of you could fuck."

Well shit, you think. "Well shit." you say. "What are we gonna do now?"

"What do you mean, what are we gonna do now?" Carrie leans into you incredulously. She's wearing a flimsy low-cut top. You've seen her wonderful breasts naked so many times, but you still enjoy getting a good look at her cleavage. "I just told you. She's 18. She's away from home. All you gotta do differently is make sure you've got the stamina to fuck another girl." Carrie winks.

You shouldn't be surprised but still you are, a bit. "You're sure about this?" You ask.

"After all the prep work we've done?" Carrie is insistent. "Not having a hot, forbidden, orgy would be the biggest disappointment of my life."

Your cock twitches and stiffens just thinking about it. But it's not really going to happen right? That'd be too much. "Do you think we can pull it off?"

Your girlfriend rolls her eyes. "Are you doubting me?"

You should never doubt her.

Four days later you're standing in her apartment, cock out, watching as Carrie lowers her sister's face into her niece's crotch.

"This is so wrong." Cassidy says softly.

"Of course it is." Carrie declares. "That's why it's so fun." She holds up, keeping her sister's face just inches from the young girl's wet, spread slit. "You don't have to if you don't want to. But as someone who has eaten out a lot of girls, let me tell you, that pussy is gorgeous. If you don't want to gobble it up, I will."

Half a head shake and deep breath and Cassidy's face buries itself in her niece's slit. Carrie holds her head there, pushing it in intensely. "That's it." She says. "Find that clit. Go nuts on it. No coming up for air." Her other hand glides up her niece's naked body to grope it.

Ella begins to squeak through gritted teeth. "Eeee eeee eeeee." It's almost ear piercing

And you decide to head over to quiet her down. She locks eyes with you as you do so. Well, just for a moment, before her eyes quickly trail down to your hard cock, pointed right in her direction. She closes her eyes and her whole body shivers. "eeeeeeee." You're not sure if it's from the anticipation of your arrival or the magic her aunt is working in her young cunt.

Not that it matters.

You arrive at your destination, your big member inches from Ella's little mouth, her lips parting.