Kiss those adorable lips of course

Tam gazed at Dari who was smiling cutely back at her. Something in the back of her mind was still screaming about how things here are clearly wrong, but there is a thick fog dampening those screams. Tam is far more interested in her sister's lips. The smile has shifted to a pout, Dari knows what she is doing, and knows Tammi is too far gone to figure it out. And the pout is what does it, Tammi cannot resist it, she leans forward and kisses Dari who kisses her back hungrily. Breaking the kiss after a few minutes Tammi looks at Dari dazed. That kiss was incredible, she wants more, a lot more. And so does Dari, and Tammi wants to give Dari what she wants. So she kisses her some more, and then while kissing her picks her up and places her on the bed. At this point she breaks the kiss and looks at Dari, she has an adorable smirk on her face. Tammi knows her eyes must be glazed over by now, but she does not care, she just wants more of Dari, wants to please her.

Tammi kneels before her and starts to pull down Dari's pants, but is stopped.

"You first. I want to see you naked."

Tammi blushes, but obliges, and feels a bit inferior in front of Dari, vaguely she remembers Dari not being so voluptuous, but she pushes that aside. It does not matter, she looks incredible now, who cares how this happened. Once she is naked she looks to Dari and cannot help but smile as Dari very clearly checks her out, and likes what she sees. Still smiling she moves towards her little sister and strips her, Dari complies with a giggle as Tammi removes her top, pausing to admire her large breasts, no bra. Then she pulls down Dari's skirt and panties, and is surprised to see a dick there, standing straight up right in front of her face. It is mesmerizing, after a moment Tammi tentatively licks it, and hears Dari gasp in pleasure. Encouraged by both that and the pleasant taste she takes Dari's dick into her mouth, both girls moan at that. Dari tastes soooo good, and she clearly is enjoying this, and Tammi loves pleasuring Dari.

Dari tosses her head back and moans, surprised at how easy it was to seduce the straight laced Tammi. Something about that makes it all hotter, looking down she makes eye contact with Tammi and smiles, then moans from the vibrations of Tammi's moans. Fuck this is incredible. Suddenly she realizes Mistress is watching from the doorway, that was quick. She waited much longer before joining her and mommy.

Harley had decided not to wait as long this time, no reason to do so, and it will be fun to just jump right in. So, she does, she moves to Tammi and grabs her waist to lift her up, she hears a muffled squeak of surprise, but Tammi does not stop pleasuring Dari. Harley then moves Tammi's hand out of the way and thrusts into her pussy, this time the muffled sound is a loud scream of pleasure as Tammi orgasms.

Tammi's mind goes completely blank for a minute, when she comes to she is still sucking off her beautiful and sweet sister, while being fucked from behind by. She does not know, she looks to Dari with a clear question in her eyes. Dari looks to the person fucking Tammi so hard and good and hot and nice and, wait, Dari is starting to speak.

"Mistress Harley is fucking you Tammi."

Harley? As in Harley Quinn? Mistress?