Step-Bro Blackmails Step-Sis for Hand Job

"Hey Step-Sis, I know what you've been doing."
"What the fuck are you talking about?"
"I know you've been stealing from step-mom and step-dad so you can take your friends clubbing."
"Okay...so what?"
"I'm going to tell them...unless you give me what I want.
"You little twerp! What do you even want from me?"
Whipping out his dick, "I can think of something you can help me with."
"EEEW!! That's fucking gross! Get the hell out of my room!"
"Okay fine-- but I'm telling on you!
"Wait!! Wait.... Okay.... just... get on the bed... let's just get this over with.... GOD! This is SO gross!