A dick suck...

"A dick suck," said Red.
"What do you mean?" said the carpenter, who Red started to understand was more willing to play along, more willing to try new thing.
"Well," red said, "since you want me too, you have to earn me, too... so one of you-- whichever sucks cock better.... you get me as a girl... since even as a girl you'll need to take me in your mouth.... especially when you pretend my big dick is a clitty.."
"Deal," said the woodsman, whose dick was a few inches shorter than Red's.