He could resist no longer. Pulling her legs open as far as they would go, he drove into her visciously. His sisters tiny body submitted to him as he entered her and he grunted as she strtched around him. The smallcanal could not contain him as he forced into her womb. He came as her tight cervix gave for him and he paused as he unloaded. She made him feel strong and his urge to pound into her fully took over. He yanked on her thighs as he ground into her. Her womb burst and he plowed deeper sliding through her slippery, hot intestines. She was wailing with each thrust and she gasped when he penetrated her liver again. She started to vomit until his growing cock pinched closed her gullet. The feeling made her gag on her toungue and she shreiked.
Her reaction brought his lust to a peak and he drove his cock in further. He felt her heart beating against his manhood and he drove through it.
For a moment, she died. But as he came again in her heart, she revived and her heartbeat squeezed him. He began to climax again, but this time it was with a force he had never known. He drilled his penis in again and her ribs cracked, breaking through her chest. She convulsed, trying to scream for "mommy". She felt his cum hitting her chin. She wanted to catch the semen in her mouth but was unable to with his dick inside her like a splint.....