Fuck that

"Fuck off" Dean growls "I'm not playing your games. If you won't help me I'll work something out myself."

He turns on his heel and starts to storm out of the kitchen only for Karen to stop him in his tracks.

"Stop." she orders her voice calm.

Dean finds himself rooted to the spot.

"Come here and sit down." Dean's body obeys without him willing it.

"Stroke your lovely new cunt until it's good and wet." she commands "Then finger yourself until you cum like the little bitch you are."

"No!" Dean protests his eyes wide with shock "I can't. I won't..."

His complaints turn into moans as his hands follow her instructions. His face burns red with humiliation as he feels his fingers teasing and stroking the sensitive fold of his new sex. Despite his shame, he can feel things heating up down there. He teases the tampon out and replaces it with a finger. As strange as it feels to have something inside him he has to admit it feels pretty nice too. He probes around searching for the most sensitive spot. He tells himself it's just because he wants to get this over with but the truth is he is starting to feel good. He tries to probe deeper but is surprised to find it feels better if he focuses the area just inside his entrance. His other hand rubs at his outer lips until it brushes against a tight hot nub nestled among the folds. He gasps and snatches his hand away from his newly discovered clit. Carefully he teases it forgetting all about his earlier complaints. It sends jolts of electrical pleasure surging through his body. He moans and grinds against his hand lost in the moment. If he was still capable of a coherent thought he'd wonder whether his sudden bliss was a result of Karen's order or if masturbation is just that good for girls. After a surprisingly short time, he feels himself tense inside.

"Oh Oh god" he groans "I... I'm coming!"

Shuddering and moaning he experiences his first female orgasm while his sister watches on and laughs.

"I think I've made my point." she chuckles once he's had a chance to catch his breath "You are going to help me and then if you ask very nicely I'll think about helping."

"Fine. Whatever." Dean agrees defeated "what do you want anyway?"