Beg him for something bigger

"It feels so good inside of me, daddy, but I need it deeper. Please, you must have something that can reach all the way inside," you beg while looking back at him.

Your father looks you in the eyes, his finger still stuck up your ass to its base. Staring back with a pleading look on your face, you see his free hand next to an impressive bulge in his pants. Biting your lip and looking him back in the face, you wiggle your ass around on his finger and give your sphincter muscles a flex.

"I promise I won't tell anyone, dad. Your finger feels so good in my ass. I need more," you say while blushing and giving his finger a squeeze. The squeeze sends him over the brink as you see his pants noticeably tighten.

"Okay, but I'm only doing this because you asked so nicely," he replies as he withdraws his finger and grabs the lube.