Hot Summer Job/Take a moment to adjust yourself
"I need to adjust either you or me, or maybe both, or I might end up dropping you!" you chuckle. You pull your hand away from Bree's pussy, dragging your fingers across its now rather moist surface. That gets an immediate reaction from your sister.
"No! Don't put me down! Please!" she punctuates with another leg squeeze.
"Okay, okay, I won't. But I still need a sec. Can you at least pull yourself up?"
Bree nods. She locks her arms around your neck and presses her heels into your butt, the two combining to lift her at least a foot higher and without your support at all. Her body presses tightly into yours but her chest is now at eye level. As she pulls herself into your face your nose is planted right between her non existent cleavage.
You are hands free now, your sis doing most of the work. You shake one of your arms out and reach around her leg with the other. You brush past the back of her dress, the lowered garment barely hanging off of her hips. You move past the dress to your target, grabbing hold of your dick. But you grab hold of the stiffest hard-on you've ever had in your life. A gentle squeeze sends lightning down its length. You give a few little instinctive pumps and instantly coax a handful of pre-cum from your member. For half a second you think you came. But all this lubrication has been building over the past ten minutes just waiting for a little pressure to release it. You don't want to wipe your hand on Bree's dress, so you do what comes naturally and lube up your shaft with it.
You doubt Bree has very much to imagine with you shaking your fist beneath her. After a moment, she slowly drifts to one side until her nipple reaches your mouth. Coincidence? Not likely. Her nipple is rosy pink and every so slightly poking at your lips. You kiss it as subtly as you can and wait for her reaction. Bree is stoic and perfectly still. She's almost trying too hard to not react.
Spurred on by your hand still lubing up your cock, you part your lips and enclose them softly around her little nip. You don't suck on it, just gently naw and pull on the firm nub with your mouth. The tiny breast behind her nipple gives only slightly against the pressure of your lips, a budding pillow holding her nip against your mouth. You give a quick flick of the tip with your tongue and get a short gasp from your sister followed by a long exhale.
You could easily blow your load if you wanted. It would hardly take any effort, especially if you could suck on your little sister's nipples while you do it. But you hold back, nawing at her a few more times and bringing your hand to a slow stop at the base of your dick. Bree leans away from you and shows you a blissful smile. What now?