"Because you're making me all hot and horny," giggled their aunt.

"What's wrong with that?"

"Nothing," she answered. "But the kids might walk in and find us."

"They've gone over to the playground," they heard their uncle say.

Curious to see what was going on, they tiptoed down the hall and peeked through the partially-open doorway. Both of their mouths dropped open with shock when they saw their aunt and uncle standing in the middle of the room. He had his wife's skirt up above her hips, and his fingers were excitedly goosing into the soft crack between her panty-clad asscheeks as he writhed against her like a rutting animal.

The children could hardly believe their eyes when they saw Aunt Alice reach down between their squirming bodies and grasp his cock through the material of his pants.

"Oh, give it to me, honey!" she sobbed. "Piss on the kids! Give me this big, hard prick! "

Feverishly pulling and squeezing on his thick cock, the blonde woman's entire body was trembling with anticipation.

"Hurry!" she panted excitedly. "Pull your goddamn cock out!"

When he didn't respond quickly enough, the insanely-aroused woman jerked down his zipper and delved into his open fly.

"God, that thing feels good!" she hotly whispered, passionately kissing him with her moist, parted lips as she curled her fingers around the throbbing length of his thick, hard prick.

Staring excitedly at the man and woman, the twins watched Aunt Alice pull their uncle's cock right out of his pants. This was the first hard prick that Amy had ever seen, and she was fascinated by the contrast of his milky-white shaft against his big purple cockhead. The amazed, little redhead could feel her cunt getting all hot and wet as she watched Aunt Alice's hand slowly sliding the thick, rubbery foreskin up and down over the throbbing length of his huge boner.

"Goddamn!" gasped Jimmy as the woman released his uncle's prick and threw herself down on the couch.