Your grandfather is definitely thicker...and longer.

Carrie's hands moved to pull down his pants, and you held your breath as you looked on and wondered how things would go. Your girlfriend was moving faster now, whether that was from being excited or from wanting to get this over with, you didn't know. She grabbed the waistband and pulled them down swiftly, your grandfather's underwear and pants both pulled down to his ankles as his cock sprang free right in front of your girlfriend. Carrie raised her head and looked at it, her lips parting and a tiny gasp escaping as she realized the same thing as you.

Your grandfather was bigger than you.

Carrie's hands moved up, running along his thigh before she wrapped her right hand around the base of it. She maneuvered it and leaned in closer, licking her lips as she looked at the stiff cock in her hand.

"You're...it's a little bit bigger around," Carrie said, "I can get my fingers to touch when I wrap my hand around your grandson, but yours...you're definitely a lot thicker."

Your pride took a hit at her choice of words. Definitely thicker. By a lot. It wasn't a close contest. After she got her hands on it she realized that he was undeniably thicker than you. You could see his cock throb, growing harder as Carrie moved her other hand up and wrapped it around his cock, and you gulped as you saw he was long enough that Carrie could wrap both hands around him.

"And...fuck," she grunted out, defeat in her voice as she uttered the words that you didn't expect to hear.

"Dammit you really are bigger than my boyfriend."

Your grandfather was grinning ear to ear as Carrie said it, the clear winner of the bet and delighting in the fact that he was the bigger and better man compared to you.

"How much bigger?" he asked. Carrie was moving her hands slowly, almost in awe of the cock in front of her. She moved a hand to his oversized balls, lifting them up as she tried to compare the man she loved with his grandfather.

"I...maybe an inch longer," she said, pausing as she reconsidered. "Inch and a half...or more. It's...fuck it's nice," she muttered.

"Repeat that whore," your grandfather said.

"You have a nice fucking cock master," Carrie blurted out. While you were shocked that your girlfriend would say it, your grandfather just looked proud. Like he knew she would say it.

"Good girl. Who has the better dick then? Me or my baby grandson?"

His question hung in the air as Carrie continued to stroke his cock and lightly move her hands around. Almost like she didn't want to admit it. Didn't want to put the words out into the universe.

"You have the better dick. Yours...yours is definitely fucking better."

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