Heteropaternal twins

"I think it's called heteropaternal... twinning," Jackie continued before a smile grew on her face. "I don't really know how it happened yet. I can tell you made them more fun though," she smirked as she turned back to her two siblings.

"Hi sisters! I think it's time I let you have a gift for being good sisters," Jackie began as she wrapped a hand around Mark's waist.

"Oh?" the pale green haired sister with her higher voice asked in a curious tone, her demeanor sullen and eerie but sultry as she gave Mark a predatory look.

"You mean..?" the neater, half black sister continued on her half-sister's train of thought, resting an arm around her sister's tattooed waist and taking a step closer, curiosity and lust dancing across her more empathetic and mirthful face. They certainly still seemed very close. Even if they were of different fathers, their time in the womb together must have given them that twin connection.

"A taste of the married life?" The punk one, Abby, you remember, asked again as they took another step closer in unison, wrapping her hand around Gabby's waist.

"For your cam stream, and a taste is all you're getting. Markie-boy's dick is betrothed to one pussy, and one girl, unless I give him blessing to put it in others," Jackie told her sisters before giving you a glance. "Which admittedly happen now and then, but that's how we roll. Now are you two girls ready to get some new subscribers? I'll manage the stream and camera while you two do the front end business."

Abbie and Gabbie stared at Mark with hungry eyes and wide smiles as they put one hand each on his back, pressing their breasts into his chest. "We've never been more ready," they say in unison, hands rubbing up against Mark's back.

Within five minutes, Mark was experiencing his first double blow job. From what he could guess, at least. The sisters were taking shifts or doing it on their own. They both had very different methods, but their spirits, hunger and lewdness definitely were closely related to themselves and Mark's wife. Jackie was keeping a camera between them, sometimes borrowing a few fingers from Mark to tease her own folds, sometimes getting a hand from one of her sisters and joining the stream without showing her face.

Viewers arrived by the thousands, money arrived by the thousands, and the girls were putting on a show that made Mark wonder how long he could last. Normally he'd be gone within the minute, but the girls must be mind readers because every time they were about to pull him over the edge, they pulled him back and kept him edging in euphoria.