Maid

You follow her into her room and wait patiently as she searches through her closet for your uniform, she shortly emerges with what looks to be a sexy French Maid Halloween costume, complete with g-string, apron, tiara, and towering high heels.

She hands them to you with a smirk and tells you to put your uniform on. Laughing as she watches you struggle to get yourself into the costume, and even harder when you nearly fall over wearing the heels. You can't believe that you'd have agreed to wear such an outfit, but your sister did say that you had done, and you can't seem to remember.

"I'll order a big blonde wig and some nice big DD breast forms for you, that way you'll look the part just like you asked me to" she says, "and you'll pay me back from the money in your savings account, won't you?"

"Of course" you reply, of course you'd pay her back, she is only trying to help you like you asked her to.

"Now, your make up, sit in my chair over there" she points to her dresser, as you totter over trying not to fall over. "Now sit still and I'll make you up all whorish and slutty like you like it" she says, as you nod acceptingly.

After she has made you look acceptable, she stands up and claps her hands together "Don't you look the part now" she laughs. "Now, lets test out that make up, remember you agreed to lick my pussy whenever I asked you to?"

It does seem to ring a bell all of a sudden. She moves over to her bed, removes her panties and opens her legs for you to go to work. You move in and begin lapping at her pussy. You hear her reaching for something on her bedside table, but you can't see what it is as you focus on her snatch.

Suddenly she moves, which makes it difficult to continue your task, she then hands you a lifesized dildo. You look at her, unsure what to make of it, you're not gay and you've never enjoyed the thought of being penetrated. She laughs at you and says "Remember how you said you like having a dildo fucking your ass while you eat me out? Well, here you go". All of a sudden you can't think of anything you'd like more than to have that big dildo ramming in and out of your ass. You begin pumping it in and out, slowly at first due to the discomfort, all the while your sister's moans become louder. Some time later, after she has had several orgasms, you cum as well, ruining the front of your maid skirt.

You sister laughs at you, harder and harder, "You'll be paying for the dry cleaning now as well!" she cackles, "now, we can't do anything about it now, but you need to go get yourself cleaned up and head down to the kitchen to fix some drinks and nibbles, I am having some friends over tonight and you'll be serving us... And remember, you agreed to call me mistress at home. I expect you to also call my friends mistress when addressing them".

"Yes mistress" you reply, and head to the bathroom to clean your face. You can hear your sister loudly laughing and talking on the phone as you walk down the stairs...