Dinosours are often loud and clumsy.
This act must be made with a larger female, allowing insertion of the penis into the fat rolls formed when female is on her hands and knees.
Dino tummy sex refers to the clumsiness of dinosours, often sideways humping each other.
"Did you hear John and laura last night?"
"They must have been having dino tummy sex"
The sensation that arises after the male member has released a substantial amount of seamen in through the trachea all the way into the "tummy" causing naseau and diareah throughout the female's existence.
As my girlfriend finished giving me oral sex and finishing inside her tonsels, she said that there was a sudden sensation as if she ate an entire bag of gummy bears. She was obviously suffering from a case of "cummy tummy".