They continue fucking

Alex began stroking herself, staining her fingers with her brother's cum. Meanwhile Pat straddled over her, sliding his penis into her mouth (but missing at first and poking her cheek). She eagerly sucks on it, but he took most of the initiative in thrusting.

Meanwhile their mother was over on the other bench, having trouble controlling herself as she masturbated.

Alex removed her sticky fingers from her cunt to help her brace as Pat facefucked her more vigorously. A man took advantage of the opening, spanking Pat's butt then inserting himself into Alex's pussy. Surprised, she gagged a bit on her brother's penis, then picked up her rhythm again as the man began thrusting.

Pat's balls kept slapping against her chin, and then he paused for a moment, tensing up before letting out another round of ejaculations into Alex's mouth. He dismounted and stepped over the man, sitting on the top of the bench and watching as the man fucked his sister. He was a lanky middle-aged man, apparently a businessman, but dressed in an "easy access" sexworld type suit. His face and most of the shirt area was stained with fresh semen.

Soon after, he also came, adding more seed to Alex's leaking pussy.

But he didn't want to stop there: pulling his penis out, he jacked it for a bit, and then stood up to **** it into Pat's mouth. He struggle for a bit to fit it in, but soon was smoothly **** on the stranger's penis, coated with his sister's vaginal fluids and flavored with his own cum. Not wanting to be left out, Alex hopped over the bench and spread Pat's butt cheeks, then began eating him out.

The sensation was unique, and it was making it really hard not to cum. After barely a minute more, he gave in, his erection thrusting out in the air, and covering the man's legs with his seed. But the fucking from either didn't stop, and very soon he was cumming again.

Eventually the stranger was satisfied and wandered off.