The two men pushed on and of him steadily, increasing the speed of their movements little by little. Mark could now feel the increasing warm in both cocks as they sometimes thrust into him at the same time and sometimes out of synch with one another. The women were obviously enjoying the show too but at one point Stephanie got up and and replaced the cock ring that Mark was still wearing with a vibrating bullet (around his shaft) deliberately turned to the very lowest setting.
He could sense, from their movements that they were both getting desperate to fill him up and at that point he saw Victor raise his hand to indicate that half time had been replaced. They both pulled themselves and swapped place, with Victor eagerly shafting his arsehole first. Brent's black cock was slightly shorter than Victor's he realised as his mouth was penetrated again but it was also thicker pushing against his throat more that before - he definitely had to breathe through his nose more now.
Their eagerness returned once they got more accustomed to these new positions and they both urged their bodies on to the point of climax. He felt (and heard) Victor came first as his final enthusiastic push send his hot spunk deep into Mark's arse where he could feel the sticky liquid quite distinctly.
Then Brent's shaft seemed to swell even more - if that was even possible and his balls tensed and shot his seed into Mark. He felt two or three powerful spurts hit the back of his throat and start to run down inside him, followed by others that ran back coating his tongue so he could taste their saltiness and feel the viscousness of fresh spunk coating the inside of his mouth. He swallowed gratefully. The women had also reached their own individual orgasms - he had been half watching them looking at him but that was difficult to do from where he was being doubly rogered.
As heartbeats slowed and everyone slowly became less aroused, the men pulled their cocks out and after removing the gag collapsed exhausted but satisfied on the chairs.
'I suppose that means it is dinner time', said Stephanie, 'and Mark's solo performance?'