She doesn't give one, she let's you have it.

"It's his birthday. He should go first." your girlfriend says. And this is one of the reasons why you care for her so greatly, because she's considerate. Also she's participating in a wild sex romp with you and your cousin Nikki. That's a new reason why you care for her so much.

So Nikki shuffles over between your legs, her right hand still in Katie's crotch. She lowers her mouth around your stiff johnson, lips not touching it, and then closes them, clamping them down on your member, about half way down the shaft, and pulling up. The sensation is great. And just the sight of Nikki, the person you've coveted most in your life, blowing you, is almost too much to bare. She slides her lips back down. You feel her tongue piercing glide along your sensitive cock skin. Then she pulls back. Then down again. Then back again.

You look over at Katie who is staring at the sight with wide eyes. And Nikki, off your cock, turns her attention back to Katie too. "Okay, why should you get to play at all?"

There's no stopping Nikki from her desire to tease and tease and tease. It must be what gets her off. You wonder, was she getting off back when you were teenagers, when she was making you beg for the pizza?

"I don't like girls, it's true. You'd be my first." Katie says, breathing heavily. "But you could change that. You could change my life."

"Good point." Nikki is satisfied, pounces her body over between Katie's legs and buries her face in her shaved crotch.

It's an amazing sight watching Nikki's face completely obscured by your girlfriend's thighs, but seeing her jaw thrust up and down and up and down, clearly licking at her clit like a thirsty kitten.

Katie turns over to you, her breasts heaving up and down and up and down. You remind yourself that this really is an amazing, unexpected, possibly life changing experience for her too.

And then Nikki pulls back, and turns her head to you. "Okay, why should I go back to you?"

"Because I've lusted after to you longer than anyone else I've ever known." you think it's a good point.

But just as Nikki starts to move in your direction, Katie grabs a handful of her short purple hair. "No." She says, breathlessly, "Keep licking"

So Nikki turns to her. "Why?"

"Because I'll lick you back." Katie says. The response shocks you and turns you on. Hearing your girlfriend say those words, to your hot cousin of all people, makes your cock throb maybe more than ever before..

And as expected, Nikki looks back at you for rebuttal. You're not sure you have one. You wouldn't mind watching the two of them go at it. Then again, do you really just want to watch?