Give the blonde and the brunette something to compete over

You head for the busty blonde and the athletic brunette. They're on opposite ends of a bench, facing each other and chatting merrily. When you get to the bench you say, “Hi girls, how's it going?”

“Great!” says the blonde.

The brunette looks at the sky. “Isn't it a great day today?”

You look up at the clear blue sky and smile. “Absolutely beautiful. Just like you ladies.” They giggle. “Mind if I join you?”

The girls look at each other. They grin across the bench for a moment, then shrug and turn back to you. The blonde pats the empty space between her and her friend. “Sure, have a seat. I'm Hannah and this is Jas.”

“Well, Jasmine actually,” says the brunette with a roll of her eyes, “but usually just Jas.”

This is going extremely well, even without the voice. However, a new toy is hard to resist. In a very commanding tone, you say “Sycamore!”

The girls look at you like you're a little nutty. “What's that mean?” asks Hannah.

“That's just to mark the moment. Next time I say that word, you'll forget everything that happened from the first time I said it until the second time. You'll still follow all the commands that I give you in between, but you won't remember that time at all.”

“Heh, yeah right,” says Jas. “And how are you going to accomplish that?”

“Just a talent I have. Now tell me the truth, what do you girls think of me?”

After a slight pause, Hannah says, “You're mildly good looking. Not as hot as the guys I usually go out with, but I thought I'd give you a chance in case you had a great sense of humor or something.”

“I'm not interested at all,” says Jas. “I don't mean you're awful or anything, I'm just not into your type. I can always use a new friend, though.”

“This is weird,” says Hannah. She brushes a blonde lock from her worried face. “Would we normally answer a question like that?”

“Probably not,” you respond. “But that's not important. What's important is that you girls are both wildly attracted to me.”

Lust fills the girls' eyes. Their mouths drop open slightly as they realize how ridiculously attractive you are.

“In fact, you're also quite attracted to each other, though neither of you knows the other is interested. As far as you can both remember, you're both bisexuals who have always wished you could be more than friends, but neither of you suspects that the other feels the same way.

“But I'm getting off track. The reason you both let me sit here is because I'm the hottest guy ever. You both want to be my girlfriend. You want me to do everything to you, even stuff you'd never let another man do. If you could be my girlfriend, you'd never be jealous and let me fuck any girl I want because you'd just be glad to have me. Even though you're attracted to each other, your main objective now is becoming my girlfriend before the other one does.”

Jas pants as her new feelings overwhelm her. “Oh my god. How are you making us feel this way?”

“Sycamore.”

Their eyes go blank for a moment, then their senses return and they smile at you like you're a movie star. Jas says, “Okay, we told you our names. So what's yours?”

“Simon. You know, like 'Simon Says.'”

They both laugh like you just told the funniest joke in the world.