She and Tracy are treated like sex toys

The two naked sisters headed out to the mall. Standing and holding the rings in the bus, they chatted quietly as the cum from each of their pussies slid down their legs. A tall man entered, wearing casual clothes, save for the large exposed hole in his crotch which permitted his penis to stick out. It was noticeably sticky, both with his semen and the juices of various women's holes.

Upon entering, he caught sight of Shone and made his way towards her. Without so much as a greeting, he covered her mouth with his hand and **** his cock inside her.

"Take my baby, cunt!"

He continued jackhammering Shone hard, and after a few minutes, moaned as he ejaculated inside.

"She's already knocked up," Tracy informed the man. "Our dad fucked her this morning."

He growled at the news, and responded by slapping Tracy across the face, causing her to fall down.

"Slut, give me your number, I'll knock you up next."

Shone began filling out her contact information. Meanwhile Tracy began returning to her feet, but was slapped by a different bus passenger, falling back to the ground. A topless woman a bit older than her was standing there, her pants pulled down and exposing her vagina. Behind her a nude man was jacking off on a bus seat.

"Slap her again! Now **** her mouth!" he ordered, continuing to pleasure himself.

The woman did as she was instructed, taking position on Tracy's face and fucking it gently. Tracy of course began diligently licking.

The rough man liked the scene unfolding before him, and after getting Shone's information, **** her onto her knees and slid his dick into her mouth. He began gently fucking her as he enjoyed the scene.

Having had enough, the masturbating man stood up and, without warning, began fucking the topless woman anally. She yelped in cries of pleasure-pain as his thick unlubricated penis scraped against her insides. Tracy, with a face slick with juices, took the opportunity to back off.

The man fucking Shone removed his cock, then pulled her head into it, wiping off his member with her hair.

"You two," he ordered the sisters. "Tongue kiss each other." He sat down on a nearby seat and began scrolling through his phone.

The girls did as they were ordered, pushing their breasts into each other to give him a bit of a show, despite his inattentiveness. They had had plenty of incestuous kissing experience: growing up, their father had required they make out with every other member of the family, including himself.

Soon after, they reached their stop and headed off. The topless woman could be faintly seen in the background, spitroasted by two unknown men, as the bus zoomed off to its next stop.