"Oooh, you liked that, didn't you?" Aunt Susan purred as she grinned wickedly at Jim. She licked his spunk from her lips with a loud smack and a low moan. "I did too."
"So...do I get...to find out now?" Jim managed between heavy pants as he struggled to catch his breath.
Susan wiped cum from her face and sucked it from her fingers. "Almost," she teased. "You got to have your fun, but it's only fair if I get off, too."
Jim closed his eyes. He was starting to think that Aunt Susan just wasn't going to tell him the secret of her breast growth. Even if she was being totally honest this time, who knew how long it would take him to get it up again?
"You might want to watch this," Susan whispered seductively.
Jim opened his eyes to see his aunt heave a massive breast up to her mouth. She licked Jim's semen off the flesh surface, her pink tongue playing against the skin as she slowly turned both breast and face until her tongue contacted her big brown nipple. She sucked the nipple between her crimson lips, her eyes looking into Jim's from under lowered eyelids.
As Susan switched tits, Jim was thrilled to discover his cock stiffening at the display. He moved quickly, forcefully flipping Susan over on the bed and thrusting his hardened shaft into her pussy from behind.
"Easy there, tiger," Susan laughed as she glanced over her shoulder at Jim. "You need to start off gentle."
Jim started gentle. It took everything he had to keep from pumping madly into his aunt's warm pussy, but he managed to start off at a slow, deliberate pace, using the full length of his cock (when had it gotten so big?) on every stroke. He'd pull back on the downstrokes until he nearly pulled out her entirely, then push upward until his hips slapped gently against the round ass he gripped and kneaded in his hands.
"Mmmmmm, yeah..." Susan moaned. "Faster..."
Jim sped up gradually, locking his hands around his aunt's hips as he thrust. He did his best to match the speed and strength of his thrust to intensity of Susan's moans. As she breathed harder and moaned louder, he thrust harder and faster. He could feel the heat and moisture building in her pussy, coating his dick and lubricating his thrusts.
Finally, Jim couldn't hold back any more. He leaned forward and reached around his aunt, took a firm hold on her massive tits, and thrust as hard as he could. He pulled her back roughly each time he pushed forward, his hips slapping loudly against her ass with each thrust. Susan was screaming in ecstasy.
Jim's vision got blurry and his muscles ached as he thrust faster. Sweat beaded up on his forehead and ran down his face. He fucked Susan harder.
"Oh, god!" Susan screamed. "I'm cumming!"
Susan's body shuddered as she orgasmed, but Jim didn't lose pace. He leaned back and grabbed her hips as tightly as he could. His ass clenched as he fought back his own orgasm, and he thrust harder.
"Fuck!" Susan screamed again as she shook with another orgasm.
Thu Jun 04 19:33:05 2009