She can help her friend instead

You look at the eagerness on her face, then at her friend's expression of post-orgasmic contentment. The other girl's eyes are half closed, and she wears a soft smile. Her breasts heave up and down with her rapid breaths.

"Actually, right now I think your friend can," you say, unzipping and freeing your member. The girl's smile widens as it hardens right in front of her eyes. As she sits up and begins licking delicately at the head, you watch the cum flowing down her naked thigh. You're tempted to give her what the man before you did: a hard fuck and a knock-out orgasm. Actually, you'd like to do even better than him... Call it competitiveness. But the thought sloppy seconds is kind of a turn off, so you put the idea aside for now.

The girl in the blue top is looking at your blowjob with envious disappointment. "Can't I at least help her?" she asks, clearing a fallen strand of hair behind one ear... You notice that it's got a blue streak dyed in it. Funny the things you notice, despite being distracted by a gentle but pleasurable cock-sucking. "Like, lick your balls? I'm good at that. So good. You need to find out."

Wow... Not just a free-use slut, but damn eager too.

"Nah, but..." you begin, interested to see what you can get from this pair of sluts. "How about you clean up your friend here so I can give her a good fucking once I'm done with her mouth?"

"Oh..." She looks hesitant. Her friend continues to suck gently at the head of your penis, her eyes closed. You gently take hold of her ponytail (It has a pink streak in it... Hey, how cute that they match!) and pull her off of your cock.

"Do you want me to fuck you?"

"Of course!" she says eagerly, "but if you're going to put in my ass, go easy and let me get you a bit wetter, please?" Damn. Jackpot.

"I was going to ask if you'd sit up so your friend here can lick you clean for me."

"Oh!" she says, and actually blushes slightly. She turns to look at the girl with the blue lock of hair. "C'mon cuz, please? If it makes him happy..."