Sara to fuck her brother

"Oh alright..." You say as you stop tries to **** her mouth open. "I want you to strip."

Sara reluctantly does so, taking off her bottom cloths and shoes. She stands in front of you, now fully nude. A small strip of pubic hair is on her pussy, and she trembles when you move closer.

"Now I want you to turn around and face your brother. Place your hands on your sides and spread your legs open wide."

Again, the girl does as commanded. You can see Adam's eyes glimmer with lust as he zeroes in on his sweet sister's pussy. He's very close to breaking, you can feel it.

"Adam, feel free to touch your sister's tits." You say to the youth as you come up behind Sara to hold her in place by wrapping one arm around her neck and the other on her waist. "You can even suck on them if you want."

"But..." Both Sara and Adam protest but you shush them immediately.

"You know what you're sister said, Adam. She would do anything else as long as she doesn't suck your cock. Well, this is it... unless you want something more?" By this time Sara has started to struggle, but she is unable to break your hold. Adam stares at you and his struggling sister, before your message finally clicks in his mind.

"Can I... fuck my sister?" He asks but his hands have already started to remove his jeans, his boner finally free from its constraints.

"Sure."

That was the starting pistol for Adam, his sister's screams falling on deaf ears as he rushed towards the pair. He forcibly opens Sara's legs as you hold the hysterical girl down, and with one quick thrust he's in her pussy.

"NOOOOO!!!!! PULL IT OUT! PULL IT OUT! IT HURTS!" Adam starts to suck on her tits and you let go of Sara. In panic she wraps her legs around her brother's waist to stop both of them from falling. "ADAM STOP! YOU'RE MY BROTHER! WE SHOULDN"T BE DOING THIS!"

But Adam doesn't stop. In fact, when Sara pointed out that they were siblings he started to thrust even harder.

"It feels so good, sis!" He moans as he holds her close. "I - I can't stop!"

"NOOOO!!!!"