Cucking my Own Dad W/My Brother

I've had an intimate relationship with my dad for a little while and at first it was fun, fresh, new and taboo! Now things seem to be getting.. stale. I'm kind of tired of the same old; same old. I need something more.. taboo. I know what I'll do.. My dad would get so mad if I had sex with another guy but, he never said anything about my own brother! I'll have to take bro's cock for a test run though by sucking on his cock to make sure it's just though right size.. I wonder if its like dad's cock or.. better yet, bigger! I can only imagine what dad would do if he caught his own daughter and son fucking. Would he enjoy it? Just watching us going at it.. Better yet.. I wonder if he'd jerk to his own daughter cucking him.