Wait for her to come to you

Katie rises, giving you a look of lust, and walks the five steps over to where you're positioned between Samantha's lovely thighs.

She finds a way to gracefully slip out of her panties as she walks to you, revealing her lovely, wet, shaved, pussy.

And finally she's at your ear, whispering into it. "If you don't mind, I'd like to taste my best friend for a moment." and smiling.

You try to play it cool, but there's no way this isn't the most amazing thing that's ever happened to you. You realize that there are probably people out in the world, for whom this would be no big deal. Crazy, kinky people who have orgies and stuff all the time.

What odd lives they must live. For you this is a big deal. And clearly for Katie it is too, because she's caught up in the moment more than you've ever seen her before.

So you pull out and step back.

And Katie leans in and glides her tongue over her best friend's soaking wet pussy. She moans. Samantha moans. Both girls moan in unison, one at the sensation of a tongue and the other at the discovery of a taste.

Katie licks around Sam's slit for a bit, but she clearly has no intention of mastering the art of eating a girl out, so instead she pulls away, closes her eyes and savors the taste.

You stare at her, naked, lost in the moment. All three of you you realize, are now completely naked. The room smells like sex. It's beyond words.

"It tastes amazing." your girlfriend says, still lost deep in a fog of her own sexual desire. "I want to share this with you. You have to taste it too."

And you're not sure who she's talking to just now.