This was your punishment, to watch your ex used like a whore.
Within minutes you were stripped to your pink panties, impaled on a dildo and strapped to a chair. She stood in front of you, naked.
"You could have had this every night, but you were too interested in your porn. To 'curious' about cocks! So now you get to watch as your friends fat cocks use me like a fuck toy. I'm going to let them treat me like a whore and all you can do is watch."