Yes and no

After a few more orgasms for both of them, Paul decided to pursue another one of his experiments. After all, it was Friday night, and what better way to spend it than doing *ahem* science with his girl?

"So," he began cautiously, "so far tonight Big Paul's been here," he slipped a finger between her legs, "and here," he kissed her with tongue, "but I was thinking maybe he could go... here," he removed his finger from her cunt and slid it down to rest on her asshole.

"You're insatiable!"

"Just the way you like me."

"That's true." She gave his proposition a bit of thought. "Okay, but be careful. I don't know if I can take something that big down there." Well, Paul thought, we might not find that out.

Sure enough, he watched as his cock began to shrink. It settled in at somewhere between 5 and 6 inches long, and a bit thinner than average. In fact, it looked like almost exactly like the size Paul had had for most of his adult life. He was bemused to discover that all along he'd been Liz's ideal size for anal.

The anal sex was good too. Liz took him without much trouble, and was plenty tight. He came after 5 minutes or so. She didn't.

Paul was a bit disappointed by the rather dull results of his last experiment. An average-sized cock was practically the null hypothesis. So he moved onto his next experiment.

"Thanks. Let me make it up to you. Here," he scooted over to sit up on the side of the bed, "come sit in my lap." She grinned, and Paul felt his cock swelling larger again (it was easy to feel once he knew what to feel for). Oops, she had the wrong idea. "Facing the same way as me."

"Oh, okay," she said, a bit confused. She sat down, his cock between her lower back and his belly. Her confusion cleared as Paul slipped both his arms around her, using one to tweak her nipples and the other to rub her snatch.

Paul liked this position for giving hand jobs. He had good access to her whole front, there was lots of skin-to-skin contact between his front and her back, and he even got a bit of a thrill out of pretending that he was feeling his own ladyparts up.

Paul wasn't as good with his hands as he was with his mouth, or maybe Liz just didn't react as well to that kind of stimulation, but Paul's arms were getting quite tired by the time twenty minutes later when Liz arched her back against him, squeezed her vag around his fingers, and shuddered through her fifth or sixth orgasm that night.

She turned her head and reached it back to kiss him as the last few contractions went through her. "Thanks. But for future reference, your lap isn't terribly comfortable. It has this big pokey thing coming out of it." She wiggled her butt against the base of his hard shaft. "But I think I know how I can fix that."

Paul carefully watched her next move, eager to see if his plan was coming off right. She got up off him, turned around, straddled him, knelt on his legs, and brought her hands to his big cock. Good old reliable Liz had done just as expected. Paul had known that if he gave her a hand job, she'd be sure to return the favor. So now he'd get to see what size she liked for hand jobs.

He watched, rapt, as his cock grew in her hands. It had started out even with his bellybutton, and was quickly ascending past the rest of his abs. As it grew in length, it swelled in girth. Liz had to shift her grip several times. It stopped as thick around as a Nalgene and with its orange-sized head nestling up against his sternum.

Paul nearly creamed at the size of his gigantic cock. Eight inches had seemed huge, and he now looked to be about twice that. He moaned at the realization that he almost certainly had the biggest cock on the planet. Liz managed to encircle it with her two hands, but not easily; with her thumbs touching her pinkies didn't. There was plenty of room for Paul's own hands, so he reached down to help out.

The addition of Paul's hands shifted his mighty tower a bit away from his body and towards Liz's, and its head brushed up against the underside of her breasts. Almost immediately, Paul felt his cock swelling in his hands. He watched in shock as it stretched up even longer, pushing its way between Liz's ample breasts. Paul thought to himself that while Liz was somewhat modest when it came to most of her fantasies, when his cock wasn't going to be inside her she was quite the size queen.

Liz pressed her upper arms against her tits, pushed them tight around Paul's cock. In addition to the four hands working his shaft, he was now also getting a tit fuck. Wait, three hands on his shaft. Paul looked down from his cockhead and Liz's bouncing boobs just in time to see Liz begin to fondle his balls. She had to go one at a time, because they were now the size of softballs.

Liz followed his gaze downwards, and saw the giant purple head of Paul's cock sticking out of her cleavage. She stuck her tongue out towards it, and barely managed to lick some of the precum flowing out of its gaping slit. But it seemed that subconsciously she wasn't satisfied with barely reaching, as Paul's cock again renewed its ascent.

She began licking it more and more easily as it rose towards her lips. There was no way it would fit in her mouth; it was the size of a grapefruit or small melon. But she licked with reckless abandon. The tiny part of Paul's mind that wasn't entirely focused on the pleasure he was receiving appreciated the skill Liz was demonstrating in simultaneously licking his head, stroking his shaft, and fondling his balls all while squeezing her tits around him.

By now the tip of Paul's cock was just past Liz's lips, giving her an excellent position to suck his frenulum. His shaft was by now coated in the precum whose flow continually increased, and was as big around a coffee can. At its base rested two melon-sized balls, **** up onto Paul's thighs since there wasn't nearly room between his legs for them. Paul licked his lips at the sight.

Then he realized that in addition to being at just the right height for Liz's mouth, it was also hovering in front of his (the boost she got from sitting on his thighs made their upper bodies about the same length). He leaned forward to smear his own mouth and tongue over his monstrous cock.

That was the last straw. There was no way he could stand having two mouths, four hands, and two tits all pleasuring him for long. He cried out a warning, felt his balls contract and his cock swell, and then gushed like a firehose. The first shot rained back down on them. The second through fifth hit the ceiling. Paul lost count as his orgasm seemed to stretch on forever. Liz tried to take one shot in her mouth, but it overwhelmed her and cum drooled out between her lips. She grabbed Paul's mouth and stuck it over his slit so he could try himself, but he fared no better. He noticed that his cum tasted delicious, sweet and tangy. Another thing to thank Liz for.

After Paul had coated Liz, himself, and the immediate area in a liter or two of spunk, his orgasm finally began to subside. The three of them -- Paul's cock deserved counting now -- collapsed down onto the bed to recover. Gradually Paul's cock softened and shrank, but it remained superhuman. Later he would measure it at eighteen inches long and eleven around, flaccid.

"So," Liz asked, "did I finally manage to satisfy Paulzilla?"