Sally cums first

I watched Sal and Sally Langfield through their back gate as the bronzed redhead twins had a little jack-and-jill-off contest with each other on towels in their backyard, wearing nothing but running shoes and socks.

Despite the hot day, my shirt felt a little clammy from my quick halt after chasing the twins up a hill, then down to their back gate. But my shorts felt warm and tight as I watched the brother and sister show off their cock and cunt to me all unawares.

Sal fisted his slippery shaft with one hand, pumping up and down his blue-veined penis with its swollen dark pink cockhead. His other hand was under his balls, rubbing and pinching the root of his cock. His head was thrown back on his towel, and his eyes were closed. His mouth tightened and relaxed with the passing sensations.

His sister Sally stared, fascinated by Sal's passionate masturbation as she pleasured herself. She cooed and oohed as she diddled her clit with one hand. I was impressed by the size of her swollen pink clit nestled between her slippery pink cunt lips. Her dark red pubic hair fuzzed down from the bush on her mound of Venus down on each side of her cleft. The fingertips of her other hand circled the wet pink inner folds around the entrance of her vagina, spreading her hot moisture around.

Sally let out a loud moan as she started bucking wildly from the **** of her orgasm that she is having. Sal jerking eases a little as he watches his sister cum.

She looks at him with a smile, "what do you want me to do first?"

As an answer, he takes her hand and places it on his dick. Knowing what he wants, she starts jerking his cock slowly, putting some lotion on the tip. She starts working the cream onto his dick as her hand starts beating faster and faster. Her other hand starts playing with his balls. I see out of the corner of my eye someone watching them from a window in their house, but I can't tell who it is.

My focus goes back to the twins when I heard Sal moan loudly as his cum comes out all over Sally's hands. I look back and see the figure is gone, and I hear a noise behind me.