Big brother that has been grooming his little brother for years. It started with light innocent touches, showing it him how to properly jerk off, before it turned into teaching him how to suck a dick, and how to properly take it like a man.
He has been fucking his little brother for years now, without ever being caught. During a family vacation, he got a bit too comfortable and didn't close the door all the way.
Dad was just going to use the bathroom during the night, but stopped when he heard noises comming from his sons bedroom. He looked through the crack of the door and saw his eldest pounding into his youngest. An unforgiving pace as he took him all the way down, balls slapping against his ass.
Dad starts palming his growing erection. He looks up and makes eye contact with his oldest, who just smiles.
"He's so pretty like this, right?" He grabs his youngest brothers hair, and pulls so his head tilts upwards. "I trained his throat as well. Come on, give it a try."
Dad goes up in front of his youngest and starts fucking his throat. Not giving him a chance to catch his breath, both him and his oldest going at it with all they got. They finally come, leaving the youngest a drooling, brainless mess, full of their cum, laying on the bed panting.
"He's such a good fuckdoll, isn't he, dad?" Dad agrees without hesitation. This quickly turns into a regular event for the family.
