Mmmhhh... now the fun is really starting...
Put the forefinger of your left hand in your greedy mouth, make it real wet ! i want to see plenty of saliva on it ! So suck it like the bitch in heat your are !
And by the way, continue stroking gently with you right hand.
Mmmmhhh... ready for the next step ?
I guess you know where you will thrust this slutty finger, don't you ?