I made myself cum last week when I wasn't allowed to and Daddy punished me. 

He made me fuck myself with his house phone - big and bulky and oddly shaped.  It hurt, but I wasn't allowed to stop until I came.  When I had cum, he handcuffed me to the bed and then got my phone and, on his phone, called my brother.  He produced a dictaphone from the chest of drawers and played the sounds of me moaning, begging for Daddy to fuck me, and eventually cumming to my brother!  Thank God he did it from his phone so at least my number didn't show up on his screen.

 My brother mentioned it to me later, and didn't say it like he knew it was me, but I'm terrified what my next punishment will be!  I don't know that I want incest to be anything more than a fantasy, but it might not be in my hands...

Speaking of my brother, I was really horny the other night and woke up with my brother standing looking at me funny.  He said I was moaning so much it woke him up, and he sleeps below me - my parents sleep next to me!