Tit for tat.

You sit there stunned for a moment, not really sure you’ve heard her correctly. Your cock is a rock hard pole in your jeans. You would like nothing better than to whip it out and jack off right now. You get an idea that comes out of your mouth before you can even think it through.

“Ok I will do it, but you have to show me your tits while I do it for you.”

She answers instantly, “No way. You are such a pervert. How can you expect me to do that?”

“What the hell? You want me to whack off for you and you won’t even show me anything? How is that fair? And besides, I think the bigger pervert is you for even suggesting such a thing.”

“It’s fair because you are going to whack off anyway. What do you care if I watch? I am never going to show you my chest, ever! So just forget about it.”

You sit back and look out the window, making it clear that you are done with the conversation. She starts the car and you head home in a frosty silence. You exit the car before it’s even stopped moving. You go into your house, up the stairs, and in your room before Brittney even clears the car. You are so fucking horny you can hardly stand it. You flip back on the porno you were watching this morning and free your rock hard dick from your pants.

Thoughts of jacking off while Brittney watches fill your head as you fist your boner. Your sexy sister could make you cum just by licking her lips and thrusting her firm little tits at you. The least she could’ve done is given you a little something to jerk off to, since she wanted to watch you. It’s not like you expected to fuck her or anything.

Your attention goes back to the TV. You’re watching two blondes going at it. One is wearing a thick black strap-on, as she fucks the other girl, who looks kind of like your sister Brittney.. The girl has the same small tits with big stiff pink nipples. She is begging the strap-on girl to fuck her harder with the big fake cock. Staring at the blondes’ tits, you feel your cock tingling and your balls tighten, as you grow closer to orgasm.

Suddenly the door to your room opens! You realize instantly that in your horny lust, you forgot to lock it, and in walks your mom. She stares at the porn flick on the TV, and then at you, with your hard cock in hand.