"Strip and sit side by side"

Nikki's command is both expected and unexpected. Sure, it sort of makes sense that she can take care of both of you side by side. But your cousin telling you and your girlfriend to strip so she can go down on you, can't possibly make sense. Not really.

You and Katie exchange glances. You both start to strip. What else can you do? Everything seems in slow motion as you pull your shirt over your head, and start to undo your pants, watching Katie do the same thing in front of your cousin. First her shirt is off, then her bra, exposing her lovely, perky breasts, then her jeans down around her ankles, then her lacy black underwear on the ground.

And she's naked and sitting on the couch, her legs timidly spreading, uncertain of what happens next, as Nikki watches.

You've stopped mid-undressing to stare at this vision of your nude girlfriend and nude cousin, gazing upon each other's bodies. And suddenly you remember that you too, need to strip. So you pull down your jeans, letting your hardening cock pop out.

The girls are so busy staring at each other, they barely notice.

You take a seat next to Katie on the couch, your left leg crossing her right leg. The fact that you're touching as this happens, adding an extra element of intimacy to it.

And Nikki shuffles up on her knees, between the two of you. She smiles at you both, giving you the distinct feeling she's done this before. Of course she has. She wraps her left hand around your thick manhood. She licks the index and middle fingers or her right and and slips them between Katie's legs.

Katie gives a pleasant squirm and a moan. Nikki smiles at her, then turns her attention to you. "You're both getting this at the same time, but I guess someone technically has to be first. So why should it be you?"

You didn't expect to have to justify this. So you say the first thing that pops into your head. "Well... it's my birthday. This is my present. Besides she doesn't even like girls."

Nikki smirks. You think this must be a good argument. Then she turns her attention to Katie. "Why you?" This tactic is so very much like your cousin, who, as long as you've known her has loved to tease people by making them convince her of something she knew she'd do anyway. Back when you were both teenagers, hanging out with all the cousins, she once demanded you convince her that you should get the last piece of pizza. It didn't work. She gave it to her boyfriend at the time.

Of course that was then. This is now. And now she's waiting for your girlfriend to convince her that her pussy should be serviced immediately. It's quite a moment.