Robin pretends she's pissed

Your mom is already a slut for you. You realize that the best way to make her submissive to Robin is leverage, and the best leverage you can think of is the fact that you had a relationship with your mother that Robin never knew about. The downside is... You have to tell Robin about your fling with your mom that she never knew about.

You start by sitting Robin on the bed and explaining that you're still crazy about her. You tell her that it was only while you two were on a break (at least as far as you know since you only know the little bits your mom has told you), and that your mom was also being ignored by your father, even more than usual. She needed to feel loved and wanted, and it just happened.

Robin is a little sad, but not upset. She accepts that you were on a break. No one is ever really happy that their significant other found someone else during breaks. It's a little heavier having that person be your mom. After suggesting what you've told her, Robin takes a deep breath then gets excited. "Ok, so how do we take this and turn mom into our play thing?"

You smile deviously. You explain that this morning your mom got flustered, and is clearly in another slump with your father. She's both eager and feels guilty about wanting to get back with you (you tactfully omitted discussing your actions with your mother upon arrival here). Your plan is that Robin texts your mom furious about the 'cheating', threatening to tell your father if the first message doesn't get her to come running. When your mom gets there, you need to act like you got caught, while Robin lashes out at your mom. She'll need to turn it sexual, and use her leverage early to make your mom accept her role as submissive to Robin.

You type the message on Robin's phone. *You fucking bitch, I can't believe you slept with Michael!* You look it over once more, then hit send.

You go sit on the chair in the corner. For your plan to work, you have to look like you are in the doghouse too. You can both see that your mom read the text, but the minutes tick by without her showing up. You're about to tell Robin to send the next text, threatening to tell your father, when there's a soft tap on the door. You and Robin take deep breaths and put on your game faces. Robin gets her bitch voice ready and orders "come in."

Your mom opens the door and plans into the room. "Robby?" Your mom uses a pet name, probably hoping to inspire feelings of family.

Robin holds her composure. "Get the fuck in here and close the door behind you." She says, storming over to the door, as imposing as you've ever seen her. Your mom does as she's told. So far so good. Robin takes it further and pushes her back against the wall. Your mom's eyes are wide, shocked. "I don't care that we were on a break. You had no right to fuck my boyfriend you little slut,"

Your mom tries to look past Robin, looking to you for defense but seeing you feigning a submissive pose. You help elevate Robin's power over your mother. "B-b-b-but..."

Robin slaps your mother, turning her attention back to herself, then grabs your mother's throat. "Don't fucking look at him, bitch, I'm the one you wronged." Robin's actions take you by surprise even, but you hold your composure. You do find your cock twitching as you see your sister slap your mother. "Or were you just jonesing for his cock again? It's a magnificent cock, isn't it?" Robin moves to the side slightly, letting your mother see you over her shoulder. Robin slides her hand down your mother's body and inside her linen shorts. "Fuck you're so wet you little slut, even when you're caught you can't keep from thinking about his cock inside you." Your mom just moans and melts in your sister's hands.

Robin grabs your mom by her hair and forces you down to her knees. She pulls her own shorts down, revealing her trimmed pussy, and continues her verbal **** on your mother. "Why would he fuck you when he could have this? You manipulative bitch, you probably convinced him there was no other option. I would have let him fuck me on our break before making him hook up with you. And now you're going to pay. Eat my pussy!"

Your mother hesitates, frozen. She can't believe what's happening. You can't believe how hard you are watching Robin dominating your mother. Robin gives just a moment before continuing. "Do it now or I'm going to tell your husband that you were fucking your son! Now eat that pussy and taste why Michael came back to me." This time Robin grabs your mother's hair and mashes her face into Robin's wet crotch. Your mother gives in and begins licking like her life depends on it. Robin is moaning, enjoying herself. "Whose cock is Michael's?" Robin pulls your mother's head up for an answer.

"Yours…" your mother answers quietly. Robin responds by shoving her mother's face back into her pussy.

"I can't hear you, bitch. Now get that tight, young pussy ready for my boyfriend. He's going to fuck me senseless in a minute and I need you to get that pussy nice and wet like he likes it." Robin pulls your mother's face back again, slapping her again. "Now, louder, whose cock is Michael's slut?"

"YOURS!" Your mother yells before finding herself eating her daughter again. You can't tell if she was **** back to it or if her submission is almost complete. What you do see is Robin starting to get weak then cumming as your mother laps at her pussy and clit.

Robin recovers and pulls your mom to her feet. She holds her again by the throat, but this time kisses her, tasting her own sweet juice on her mother's lips. Your mother gets lost in the kiss, grabbing her young daughter and making out with her. Robin breaks the kiss and pins your mother back to the wall, a wicked smile curling up the corners of her lips. "You're starting to learn slut. I think maybe you've earned yourself a reward."