You take the chance to mess with your stepsister first.

"What was it you said, sis? You could always change things back later?" You feel a devilish grin come across your face. "I think I'll try that out. Take us to a crowded area."

The world shimmers around you and you find yourself in a park full of families, joggers, and people walking their dogs. Sarah is lying on the grass, still naked save for her panties. Better be safe: "No one in the park thinks anything Sarah or I do is unusual, and they'll forget about it once we leave the park." A few kids run past you, throwing a ball back and forth. They nimbly step over your sister's body as they pass, not even bothering to look down.

"All right. Let's get to it. Sarah, you can move again. Stand up." Sarah stands up, her face bright red, hands clamped over her breasts. She opens her mouth to say something but you interrupt. "Nope, no talking until I'm done. No covering yourself either." Her hands drop to her sides, twitching. An idea comes to you in a flash. "Now, sis, you want cum on your face, you want it more badly than you've wanted anything. Nothing is sexier to you right now than having cum, tons of cum on your face. You still know how embarrassing it is, but that won't stop you from trying as hard as you can."

You stop talking and watch Sarah, whose face is still beet red. "You son of a..." she starts, but her words catch in her throat. Absentmindedly, she brings a hand up to her face and gently caresses it. Her legs start to tremble. "You, you, you- FUCK YOU!" She runs into the crowd of people, shoving them aside to find someone who looked like they'd come on her face.

Once Sarah's out of earshot, busy pleading with strange men, you speak into the device. "Sarah can't talk in anything but dog barks, and she has to run around on all fours. She won't notice anything strange about this, though, and thinks it's perfectly normal. Nobody pays much attention to her, but men will let her pull their dicks out, and they'll cum in about thirty seconds. A lot."

You smile, pleased with yourself, and walk out into the field to find your sister. It's not hard, you just follow the dog barks which are clearly coming from a human. You find her as she's pawing at the front of a man's crotch, balanced on her knees. She manages to fish the cock out and she howls with delight, panting, tongue out, as she begins to stroke and work at the man's member. After about thirty seconds, the man explodes on her face, coating it in a thin sheet of jizz. Sarah falls back in bliss, voicing something between a squeal and a yowl as she falls onto her back, feet kicking in the air as she's wracked with orgasm. After a couple of seconds, she bounds back onto her feet and scurries off, **** to find more.

After a few more minutes of this, you lose track of Sarah, and figure this game is about done. "Sarah will come back to me now," you say into the device, and after a few seconds Sarah comes to a stop at your feet, tongue out and panting as jizz drips off of her face and into her mouth. She has her ass up in the air, and it takes you a second to realize that she's gyrating it to try to wag her imaginary tail. You can't hold it back anymore and break down laughing. Your sister, confused, cocks her head to one side, splashing some cum off of her face. "Sarah realizes what she's been doing."

Sarah lets out a series of panicked barks and freaks out, her arms and legs flying out in all directions. Howling, she attempts to stand up, but falls onto her back, arms and legs still flailing in the air. None of which helps your laughing, as you double over, hands on your knees.

Suddenly, Sarah slams into you, barking as best she can. She pins you down, and you twist your head to avoid the jizz dripping off of her face. You notice her hands trying to pry apart the first that the device is in. "STOP!" you yell out, desperately. "Get off!" Sarah bows her head and pads off of you. Her eyes, though, are still locked on your hand. You sigh and get up, brushing the dirt off of your back. This is probably enough.