Payback... siss?

"Surprise payback!" Alice announces and aims the gun at you and pulls the trigger. You barely have the time to catch a breath to try and scream no as you hear a-

*ZAP*

"Aw, Jeez, Alice," you whine as you blink the light out of your eyes and stamp your foot to the floor, steadying yourself as you shake your head, trying to get the dizziness out of your head. "Don't do that, I... I'm sorry I pulled that on you. That really made my head buzz."

Alice looks very confused at you, blinking and pondering, "Mark?" she asks, as if trying to remember something.

"What are you on about Alice?" you say as something blinks into your memory. That gun, it actually did work on your sister, didn't it? You turned her into... a professional porn star, didn't you? What was she thinking about while zapping you? You turn around and walk back into the bathroom and wipe the mirror clean of fog to see if anything had happened.

You'd just thrown on some casual work clothes to quickly get back to your sister, so you lean up to the mirror and give yourself a close look.

You check your underwear and find your trusty dick. Considering you recall your sister giving you an awesome blow-job a few minutes back, you think that's pretty much in order.

Maybe... you pull up your shirt, well, top. Nah, chest look okay. Nipples a bit stiff after the shower running a bit cold.

You look at your face and touch your skin... you've got a foundation, make-up and lipstick on, even though you just got out of the shower... maybe that's what she did?

"Did you put make-up on me?" You ask your step-sister and give her a sidelong glance before you pull up your panties, tugging your cock into the pouch. God, you love the feeling of that string sliding between your cheeks.

"I... think I did?" Alice replies in confusion. "I was thinking of a nice punishment for flashing that light at me, but now I think it was a stupid idea considering strippers probably see flashing lights all the time."

"I'm just a part time, I'm still studying computer science," you add as you tie your hair into a pony tail and pick up a pink dress, feeling a bit cold still after the shower. "Won't keep these looks forever you know," you smile at your sister as you pull the dress over your head and down.

"No, I suppose not," She absentmindedly says. "I'm sorry, I can't recall exactly what I was thinking of," she says as she moves close and embraces you. "Because I'm a little bit distracted by just having sucked my sister's girl dick."

You smile and give her a peck on her lips, sensing a familiar flavor on them. You suspect the gun only lets the one who pulls the trigger remember the past... well, the previous past, since you can't really tell that anything is different except you got more make-up on than what would be chronologically possible. "Nothing is too kinky for a porn star like Alice," you smile at her and give her butt a squeeze. "Though, I wouldn't mind if it became a habit..."