Two guys are tormenting their bellies. They like to press on the stomach, beat it, use a metal stick for this.
One guy's belly is flat and very strong. Withstands shock and strong pressure. The abdomen of the other has a deep large navel. Fingers and a stick just fall into it. All this is seasoned with oil! They go all the way to cock jerking! Everything turned them on so much!
How will it all end?