Bobby screamed and could already feel how tender and sore his ass was. He cried out each thrust. The fast and rough thrusts were going to have his ass bruised. Possibly bleeding until he woke the next day. He cried hard but tried to keep the sobs muffled. Biting his lip so hard it was bleeding. Screaming in horror as he felt the pre dripping into his bud. "un. Un. Un. Un." He cried out over and over again. Hearing his father moan while he was raping his own son was a figurative slap in the face. He whimpered and screamed in pain. So glad that his speed lessened. It took off some of the pressure but it was still rough. He trembled as blood trailed down his back. He nodded his head. "I understand. I understand. Sorry. Un. Un. Un." He cried out over and over again. He quivered at the stroking to the side of his neck. "No... Stop... Stop..." He just wanted this to be over with. He just wanted his father to come and leave him be. His body hurt. His body was stinging from his shoulders down to his ass. He whimpered as he screamed in pain as it was hurting so bad as the sore and tender bud was thrust in over and over again. He was probably going to be swollen inside by the time his father was done. His body tense as he just clenched his eyes shut and clawed at the floor. His nails scratching over the flooring repeatedly.