For this one, whore, you are gonna be a real cock slut.
Go take your favourite dildo (or use your pathetic fingers pretending those to be a cock), choose a cock sucking video on a porn website, at least of 10 minutes, and watch it all.
Mimic that girl on the screen, be a cock sucking machine as she is...
Come back when you are sucked your dildo for at least 10 minutes