Bored Little Girl/Swing set looks fun
You notice that no one is playing on the swings and that there are two high school boys sitting on the bench across from them. Perfect! You skip up to the swing that faces them most directly and take a seat. The thick rubber conforms to your premature little tush and cradles you a bit tight. This won't work! You edge forward, wriggling side to side, until you can comfortably spread your legs a little. By then, the sundress you are wearing slides up to your waste and you can feel a part of your naked butt resting right on the seat.
The thought of other kids playing on this swing later is exciting, but not nearly as much as the two boys who have taken notice of you. They are trying to look innocent, but you can see their eyes are fixed on your dress when they are not pretending to look away. You feel a tinge of natural embarrassment and push it down. You want to give these boys a show and see what they do. You push off slowly at first. The flow of air kisses the growing wetness between your legs, feeling cool and intimate. The interaction between the seat, the breeze, the boys, and your exposed privates makes you feel wild and grown-up. You're not sure why.
As you gain momentum, you instinctually spread your knees to build the "swing effect". You are very careful to look innocent and not appear to notice the boys. No one else is around. Soon, the rush of cool afternoon air is slamming against your smooth slit with each forward swing. You are spreading wide on purpose and the boys are definitely taking notice. You try to watch with your side vision while pretending to look away. They aren't even trying to look away anymore. One of the boys moves a hand to his lap and begins to press into it with his fingers, stroking slowly. You giggle, both from the childish fun of the swing and the adult thrill of controlling this moment.
After a minute of this, your head carries you to a place you didn't expect. Knowing that the view of your naked pussy is moving an older boy to fondle himself makes you wonder: How much more does he want? What would he be willing to risk to have it? How would he react if you walked up to him? How big is he underneath those jeans? Your girl's brain spills premature hormones into your blood and you can feel your skin get flush, your tummy tingle and your lips get dry. You stop thrusting the swing forward and close your eyes, leaning your head against the chain holding you up. Your high swing slows down to a gentle rock and you bite your lip as a wave of pleasure washes over you, starting at your pink little treasure and ending at the top of your head. You gasp and the sudden rush of coolness between your legs tells you that you have suddenly gotten very wet down there.
With legs still spread open, your ride comes to a stop. You moan softly in contentment and slowly open your eyes. The boys are open-jawed and staring at you, but quickly look away as if something else was more interesting. Both of their faces turn bright red. You just sigh and use your toes to push the swing gently a few more times, letting the air cool you down and dry you a little. That was a naughty thought! You came here to try masturbating in public, but this time your head did all the diddling and your fingers weren't even needed! You begin to consider your thoughts more seriously.
Should you:
Go home and clean up
Find another area of the park
Approach the two boys
Continue here on the playground giving them a show