Finish both of you.

You grow a bit aroused again, and not just at all the movement. Your hand slides up his shaft. You can only imagine what's going through his head, given such an attractive woman would be doing this for him so suddenly... but you feel like you need more. You tell him for this, he better delete those pictures and never ever tell anybody any of this ever happened.

You slide her hands down your skirt, and below your panties with your other hand. You look self-consciously to the side, but luckily nobody can see anything below your stomach because of the bench. The thrill of the danger though brings a throbbing to your pussy more quickly than you're willing to admit. As for him, he looks as if he's going to explode at any minute. He can hardly handle what's happening.

Even he looks embarrassed that you're both in the public's eye.

You can finish both yourself and him right now with no issue, but you could also find somewhere more private... But you better decide fast. The boy's cock is so sensitive, he seems to be throbbing in your hand as you think.