"Better hang on!" he said. "It's going to get a little wild!"
"Wilder than you think!" Robin said under her breath.
She lowered her other hand to his groin and grasped his thick, limp cock through the material of his jeans. She could make out the outline of its shape, and gently stroked the indentation just under the massive cockhead. She felt it begin to swell.
"Holy fuck!" Doug said, barely missing a large tree. "What in the Christ are you doing!"
Robin unzipped his jeans and flopped his prick out. She squeezed and kneaded the gigantic shaft with both hands, feeling it grow hot and big against her palms.
"I'm hanging on, like you told me!" Robin answered.
Doug ground the bike to a dusty halt, quickly hit the kickstand, and jumped off the bike.
"Are you nuts! You almost got our asses killed!" he said, trying to force his stiff dick back into his jeans. He pulled the zipper up, catching the loose skin around his foreskin. "Ouch!" he winced.
"Now look what you've done," Robin said, getting off the bike. "You've hurt yourself. Let me help you."
Before Doug could object further, Robin gently disengaged his skin from the zipper, then lowered her lips to the slight bruise. She kissed the welt lovingly.
Doug grabbed her head with every intention of pushing her away. What was happening, he wondered. My best friend's sister! Licking my cock! Strangely enough, he felt his hands grind inward, forcing her mouth savagely against the underside of his shaft.
"Suck it!" he heard himself say. "Christ, suck it!"
What Robin thought was a monstrously huge prick began to grow even larger. She pulled her head back against the pressure of his hands to look at it more closely. She stroked the thick base with her fingertips.
"God, you've got the biggest cock I've ever seen!" she said, wondering when it would ever stop growing.
"Yeah, I know," Doug said, embarrassed. "Sometimes it can be a real pain in the ass." It was apology, not pride, in his tone. "I'm sorry."
"God, I'd love to have that pain in my ass!" she said.
"You mean, that is, you'd let me?"
"Not only am I going to let you," Robin answered, swirling her tongue around on the end of his prick, "I'm going to demand that you fuck my ass!"
"Oh, baby!" Doug said, his voice quivering with ecstasy. "Now?"
"First, I'm going to suck you really good, then we can go to my house. I want to do it right! And besides, I have a cousin that would go crazy over a dick like this!" She forced the purplish, thick cockhead into her mouth and bathed it wetly. She withdrew it with a smacking noise and added, "Would you mind fucking two girls?"
"That's an easy question to answer!" Doug whispered. "You just say the word!"
Although Robin was tall herself, she found it difficult to reach his cock from a kneeling position. She released his prick and sucked on his dangling balls. After she had thoroughly slicked them up with her spit, she pulled her face away.
"You're going to have to lie down for me to do this," she said. "You're too tall!"
Doug sat back on his haunches, pulling Robin with him. Then he lay on the ground, nuzzling her face into his crotch hairs. He pulled his jeans down to his knees and arched his back.
"I can't believe you're going to do this!" he moaned. "I feel like I'm dreaming!"
Robin grabbed his hips with both hands and sucked the end of his cock into her mouth. The size, the delicious thickness of his meat made the joint in her jaw pop. She lunged her mouth down the shaft, feeling the end of his prick stab against her tonsils, then smack into the back of her throat. She looked down the massive tube of meat, and gasped. She wasn't even half-way down yet!
"Mmmmmmmmm!" Doug groaned. "Your mouth is like a hot, tight pussy! I just wish you could take it all in!"
Robin wasn't even aware of his challenge. She knew only that she wanted every inch of his prick stabbing into her throat. She pulled her lips up his shaft, took a deep breath, then thrust her mouth forward.
Doug had to look at what Robin was doing to believe it! The base of his cock was grinding against her pursed lips. His entire shaft was deeply embedded in her throat!
"Where the hell are you putting it all!" he said, totally amazed. "No one has ever done that before!"
Robin ground her nose into his crotch hairs, and with a concerted effort, relaxed her throat muscles. She could feel his prick balloon like a puff adder, squeezing against her voice-box. She gurgled a wet moan and grabbed his nuts. She rolled them around on her cheeks, already feeling the hot rumblings of a thick load of cum ready to gush into her lungs.
Dow's body shook violently. His inflamed ecstasy became so intense – not only from the delicious pleasure of her mouth, but just the visual experience of seeing such a tiny mouth gobble his entire cock down, that it seemed his muscles would pull out of their sockets!
"Goddamn!" he said with a raspy voice, "Suuu… nnnn… suck…suck it, you fucicing cocksucker!!! Gargle my cum into your throat, you cum-eating cunt!!!"
Robin was glad that his jeans prevented him from throwing his legs around her neck. His pleasure was so all-consuming, she knew he would have pulverized the bones in her neck. He jerked his body against her thrusts wildly now, slamming her head into his crotch with his powerful, large hands.
"Jesus, Holy fucking Christ!" he grunted, suddenly flipping Robin over on her back.
"I'm going to fuck your hot little mouth full of cum!"
His full weight pressed savagely against Robin's face. She gasped and flailed about, but the motions were useless. When he gave a mighty, throttling lunge into her throat, Robin felt his cock would ram through her neck. Yet, the lack of air, and the intense pain of having such a thick slab of meat grinding into her lungs couldn't even match the explosive release that jammed into the back of her pussy.
"Aaauuuggglllfffmmnn!!!" she gurgled, closing her throat muscles around his iron-hard prick.
Her orgasm was interrupted by a violent explosion of hot sperm that blew into her throat with such savage force, she began choking and gurgling.
"Take it you cum-sucking cunt!! Take it and gargle it!!" Doug yelled.
At first, Robin couldn't taste the creamy, gushing globs of jism. They poured out of Doug's cockhead, jerking and squishing against her voice-box, draining into her stomach. But as the load increased, large blobs of sperm shot back upward, spilling into her mouth. Some of the fluid burst upward, collecting behind her nostrils, then streamed out her nose.
Every muscle in Doug's lean frame was tensed and ribboned. He jammed forward, digging Robin's head in the dirt, emptying another fantastic jerk of hot cream into her lungs.
"Take every fucking drop, you cocksucker!!" he grunted, plowing even harder into her mouth. "Drink it!!Eat it!!!"
Robin gobbled the thick masses of hot sperm as quickly as possible, but it was humanly impossible to keep the spewing gobs from splattering all over her face. There was simply too much jism to swallow!
Doug smacked his groin against Robin's face with ever increasing momentum, until the last, volcanic burst of cum thundered up the center of his shaft and splattered deeply in her throat. Then, he gave one final thrust, totally burying his prick in her throat. His nuts smacked under her chin with a noisy slap.
"Fuck!" he grunted, his face a study in pain. "Oh, fucking Christ, fuck!!"
Robin had to admit that the last wad of jism was the best. It was thick, gelatinous and steamy. Almost like a wad of gum, it burrowed into her throat and slipped into her voice-box. She gurgled another climaxing moan, then drank it down.
Doug shook his head, as if he had been in a deep trance. Quickly, he pulled away, slipping his cock out of Robin's mouth. It slapped against his stomach with a thud.