You decline—because you want to pique Sara's lust-envy in full public view

"I have a better idea," you say. "I'm sure that you've talked to Liz about this. Which means this is like a negotiation—Liz gives me something, I give her something."

"You give her a *lot* of something," Sara says, laughing. She's not denying that she's talked to Liz already.

"Well then," you say, "I get to say something about the 'terms' too."

"Watch out," Sara teases. "Liz is a lawyer. If it's a negotiation she'll eat you for lunch. Or, maybe, no one will get what they want. She can be headstrong."

"I'll be careful," you say. "My condition is, I want Liz to show me that she's hot for me. That she wants me, and not just anyone. It should be sexy, and fun. Making a baby the fun way. Emphasis on fun."

"So my sister has to seduce you to get your sperm? I don't know if she'll like your ego. Sperm isn't hard to get."

You grin back at Sara cockily. "Is it easy to find the kind of sex that you had with me? To be with a lover who can give you orgasm after orgasm? Who helps you learn about pleasures you never knew you needed? Sex outdoors. Dirty talk. The first man whose cum exposed inside you. The first man to put his fingers in your ass. The first man you shared with another woman."

Sara whispers, half to herself, "The only man I shared." You can see the signs of lust in the way that her body squirms.

You continue. "I'm sure Liz knows all about this, from you. She knows what I can bring. She can show me that she wants sex, and not just my cum. That she wants the hard cock in her too. My hard cock."

Sara is flushed—you have won again at your little game to turn her on.

Sara takes a drink of her beer to compose herself. "So you would fuck Liz raw?" Sara asks.