Dahlia.

Leaving you in a heap to recover, Dahlia gets on all fours and wiggles her ass at Paul. Needing no further encouragement, Paul gives her ass a quick swat before pushing her head onto the bed and slowly slides his cock inside her hot, wet pussy. Taking the sheets in hand and biting down on it, Dahlia whimpers and kicks futilely as she feels him stuff all of his turgid rod into her. They both let out a satisfied sigh when he finally bottoms out inside her. "...so big...," Dahlia whines, reaching out to you. "...so good...No one's ever been in so deep before, sis."

If she had anything else to say, it devolves into moans and grunts as Paul starts thrusting into her, powerfully. Taking hold of her hips, he pulls back until only his cockhead is left inside her, before hilting himself with each stroke, reveling the way Dahlia's ass ripples and waves every time it bounces off him.

Coming up to kneel next to Paul, you turn his head towards yours and the two of you start kissing again. Dahlia protests loudly that he's stopped moving, and he turns to look at her. "If you want this dick, start fucking it then. I'm a little busy back here," He snarls, before leaning down and taking one of your nipples in his mouth, making you squeal, both in sexual pleasure and triumph, knowing that your breasts are more enticing to him than your sister's pussy.

Dahlia scrunches her face and huffs loudly. Determined not to be outdone, she inches her way backwards while squeezing her pussy tightly, spearing herself on Paul's cock until he's completely inside her. Throwing her hair over her shoulder, she smiles at him and starts wriggling her hips, this way and that way, making her ass jiggle wildly and assaulting his cock from all angles.

Paul moans loudly and focuses back on to Dahlia. He starts slapping her ass, coordinating his strikes so that when she goes right, he slaps her left; and when she goes left, he slaps right. You, on the other hand, take her hair in yours, and yank it down and back, forcing her to arch her back. Paul also thrusts forwards, driving himself deeper into her, almost punching through her cervix. Dahlia lets out a loud shriek, but no one can tell if it was from the hair pulling, the ass slapping or from the small orgasm she's just had.