Help lick Katie's neck

You decide it's time to give Katie an experience unlike any she's ever had before. You walk up to her with confidence and kneel behind her at the foot of the bed.

Then, as Samantha's tongue glides around the front of her neck, doubling back over flesh that's already well covered with her saliva, you pull Katie's hair to the side, exposing the nape of her neck. Tiny little hairs there are standing on edge. And you lean in and begin to lick them.

And now Katie has two tongues working over the spot on her that brings her the most joy. She reaches an arm around her and places her hand on the back of your head. Your body presses up against hers. You can feel her whole body heave and tremble.

You reach both hands around her, slowly unbutton her jeans, unzip them and slide your fingers down into them. She's soaking wet. She's almost wetter than you've ever felt her, at least in this point in the process.

"Don't stop. Don't stop" you hear her whispering through gritted teeth.

How quickly, you think, did the scene of two goofy girls, giggling together turn into something with such quiet intensity.

As your tongue slides around the left side of your girlfriend's neck, it meets Samantha's. You're almost a bit startled. You didn't realize she was enjoying that spot as well. But without conscious choice, your tongues lift off Katie's neck and begin to tangle with one another.

Now you're kissing your girlfriend's best friend, inches from her face. You can sense her looking over and watching the two of you go at it. Your fingers go wild in her pants, rubbing at her clit faster and faster.

And suddenly "FUCK!" Katie shouts. A surprise because Katie is not much of a shouter in bed. A lovely moaner to be sure but she's never shouted "FUCK! FUCK! FUCK! YES!" Before.

Samantha pulls her lips from yours and she's already close enough to Katie that she can whisper into her ear from here. So she does.