"Return the favor in her brother's room" (switch to Caroline POV)

You wait. You wait for Zoe to find her brother's gift to her. Or rather, what she thinks is her brother's gift to her.

It'll be like pulling off a band, realizing that everyone around her is a wild sex fiend. Clearly Shannon is. And you are. And Joey... well Joey is a teenage boy.

Which makes you wonder. Maybe Zoe is too. Maybe your sweet little daughter has thoughts you never suspected. Certainly Shannon's porn collection was something you never expected.

And feeling proud about it is something you never expected. But you do feel proud. Your mind feels clear, focused, unmuddled. Submitting yourself to the man next door, and becoming a gigantic slut, the type who is now unquestioningly going to seduce her daughter, is somehow the most freeing thing that's ever happened to your mind.

But first you wait.

You pass Zoe in the hall. You try not to stare at her with lust. You've never looked at her with lust before. And you almost have to wonder why. She's such a pretty little thing, thin, petite, a-cup breasts, long, skinny legs, blonde hair, the same color as yours but a little curly. Her resemblance to you is clearly marked on her face, more than Shannon or Joey. Everyone always knows right away that she's your daughter.

And today she's wearing a pink tank top and skinny jeans, her hair pulled up into a bouncy pony tail and... interestingly enough, a choker necklace. You wonder if she's trying to convey the same subliminal message as you. Is she collared by someone? Or does she maybe just want to? Or does she not even know she wants to, but can't avoid the fact that the sight of her with that tight strap around her neck is unendingly appealing.

You smile at her as you pass her. You want parts of her inside you. You want parts of you inside her. And you're not just going to shrug off that desire as a filthy, impossible, irrational, impulse. Not today. Today it's going to become a reality.

Then you hear her scream.

She's gotten to her room. She's seen Joey's gift on her mirror. So you head there, feigning shock.

"What's going on?" You ask.

"What is this?" She asks.

You look at the mirror, still dripping with cum. "Looks like your brother left you a little present this morning." You answer nonchalantly.

"That's... that's... is that really?" She seems totally shocked, and maybe a bit disgusted. And maybe, just maybe, based on the way she bites her lip, a tiny bit turned on, but too afraid to admit it.

You play it cool. "Yup, probably."

Then she glances at you puzzled. Her big, adorable, eyes staring at you. "How can you not be more shocked by this?"

You shrug. "Teenage boys do that sort of thing all the time. My brother did it to me when we were growing up. And Joey's already done it to Shannon's room" It's wrong you think to lie and to implicate Shannon in this seduction as well. Although you sense Shannon might not mind being a part of whatever perverseness is about to happen. But still, it's a lie, and it's wrong.

You look at your daughter's tight, gorgeous body. You remember what it was like to hold her at your breast. You want her there again. The concept of 'wrong' doesn't really apply to your life anymore.

"R... really?" Zoe says, rather surprised at this revelation that boys jizzing all over their sisters things is supposedly normal behavior.

"Well you know, teenage boys are just ridiculously horny all the time. A lot more than girls." Now you're pressing for a reaction. And you know you're going to get one.

"I don't know if that's true." Your adorable Zoe, proud member of the debate team. She can't resist. "Girls can be just as..." she hesitates, as if she's just realized she's having this conversation with her own mother "horny, I guess, as boys."

"Maybe" you say, playing, "But you'd never go over to his room and squirt all over his stuff." This is almost too easy.

And Zoe doesn't answer. Instead she goes into deep thought. Is she debating doing it? Is she wondering how her life suddenly and quickly got into this place where her mother is egging her own to masturbating over her brother's things.

"Why not?" Zoe asks, asking herself more than you, it seems. "Yeah... why not?" But still she doesn't move.

"Well... maybe he'll get the wrong idea." You say. "I mean, finding your sister's juices on your stuff. That's more than a little come on."

"Well what's this supposed to be?" Zoe gestures at her mirror. "I mean if he can do it... yeah... if he can do it..." And she starts to move, walking with timid purpose out of her room, across the hall and into her brother's room.

You follow, and stand behind her as she takes in her options, and probably realizes that she may actually have to do this now.

"You don't have to do this" You say, knowing that will only convince her to go through with it.

"I do." Zoe says, sounding cute, but determined. "He left me a surprise, I'm gonna leave him one. So there."

"Okay" you smile. "But on what?"

And Zoe makes a face. Clearly she's unsure. But she's thinking.