Today was our one year anniversary. I had taken the day off and arrived at Annie's apartment early. When I let myself in, she was laying on her stomach on the bed. She rolled to the side to look at me with a grin on her face. I smiled as I took in the bright green wig she wore today, the dog collar with a bright green heart on the leash clip, and the back semi transparent blouse that showed a hint of her breasts.
"Daddy, you're early," she said softly.
I chuckled and said, "I waited as long as I could since I knew you had studying to do."
Annie giggled and blew a raspberry. "I've got this mid term test aced."
"If you don't then I'm going to spank that beautiful ass of yours until it is cherry red."
With a groan, Annie whispered, "Promises, promises. You keep saying that but you never deliver."
"As a third year law student, you know a threat isn't a legal contract or a prosecutable offense unless I make it a terrorist threat."
Annie laughed. "You know just enough law to be dangerous. Speaking of which, how was court yesterday?"
I had been called on to testify in a fraud case. I'm an investigator for a group of lawyers. "Boring, boring, boring. My boss asked six questions that I had solid answers for. The defense asked nine questions that were all smoke and mirrors."
"How did you answer those questions?" She asked as she brought a hand up and caressed her breasts lightly.
"Four of them, I chuckled at and asked if they were serious questions. The other five, I pointed out the error in their question. The judge had a grin on his face the whole time of the cross examination."
Annie sighed. "You have all the fun and all I do is study my ass off."
"Speaking of your ass," I said as I pulled a heavy metal butt plug out of my pocket, stepped over by the bed, and laid the plug on the bedside table.
Annie groaned as she squeezed the breast under her hand. Her eyes remained on the butt plug as I stepped back. "It, it's bigger than the plastic one I have in now."
"Yes, it is," I replied as I walked over to the small desk at the end of the bed.
She rolled over more and looked at me. "But--"
I cut her off with. "How many more pages of notes do you have to go over?"
She groaned and shivered. "Another dozen or so."
"And how many of those would you even see if I shoved that new butt plug up your cute ass?"
She groaned again and whispered, "Uh, maybe one or two."
"Okay, turn over and get to reading while I do my weekly paperwork."
Annie giggled as she turned over and reached down to pull her soft black skirt up to the bottom of her ass. Her feet and knees were together but I knew that wouldn't last long.
*****
I had two note books of my own open and I was transferring data from my pocket note book to one or the other of the bigger notebooks. I had a smile on my face as I watched Annie's feet and calves. She had on white thigh high stockings and her feet rose up. She would move one and then the other.
What was even more interesting was the way her knees slowly parted as she bounced her feet up and down. When she turned a page in her notebook, she would roll her body to one side or the other. At the same time, her knee on the opposite side would move outward.
Pretty soon, I could see the ruffle of her inner lips and most of her outer lips. Ever so often, she would roll her ass up until I could see her clit, which stood up above her inner and outer lips. Was it teasing me that had her aroused or the thought of the bigger butt plug?
Only time would tell. Showing off was so new to her that even flashing me worked on her libido. The addition of the small red butt plug up her ass was only a week or so old. It had turned her on to no end when I inserted it and teasingly showing it to me kept her hot and bothered.
The next time she rolled her ass up, I stood up, leaned over and moved the hem of her skirt up across the middle of her ass. She made a soft whimpering sound as she lowered her ass. "Should a daddy be looking at his daughter's bare ass?" She asked with a tremble in her voice.
"Should said daughter have a butt plug up her beautiful ass?" I asked in reply.
Her knees wiggled wider as her ass rolled up higher than before. I grinned as I saw she had crotchless panties on. They were red and the front came down to the middle of her smoothly shaven mound and two wide strings outlined her outer lips and came together to run across the head of the butt plug.
"Sexy," I said mostly to myself.
"Thank you," Annie said with a giggle as her ass rolled up and down slowly. "That is exactly how I feel."
"Study," I said sharply.
She moaned and whispered, "Yes, sir." Her ass never slowed in its up and down motion. Her slit was slowly opening to show more and more of her bright pink inner lips. How she studied while getting turned on, I could never figure out but it seemed to work for her.
*****
I wasn't getting much done but she was. Her inner lips were open and I could see the bright pearly pink at the bottom of her slit by the time she closed her notebooks. She took a deep breath and squirmed on the bed as she picked up her smart phone.
"Daddy, can I have my new butt plug while I look up the answers to a few questions I have?"
"Would it help you study?" I asked as I stood up.
"Oh yes," she whispered as she wiggled backwards until she was on her knees with her ass pointed up in the air. Her back was arched downward and her breasts were resting on the bed.
I leaned forward, lifted the two elastic straps and pulled them up a couple of inches. I moved them out to the side and let go of them sharply. Annie gasped loudly as her hips jerk when the elastic snapped against the bottom of her ass crack on each side of the butt plug head.
With a tight grip on the head, I twisted it one way and then the other. She moaned the whole time it moved. When I pulled on the head, the plug slowly, grudgingly parted the tight ring of muscles guarding her rear. She gasped loudly when it suddenly popped out of her ass.
I shoved it back in and slowly fucked her ass with it. She made loud whimpering sounds as I did. When the whimper turned to a groan, I pulled the plug completely out and laid it aside. She made a soft sound of frustration until she saw me picking up the new plug.
As I went back behind her, she asked, "Daddy, is it going to hurt?"
"Not if I lube it up good," I replied as I leaned over and brushed the cool metal tapered end up and down in the cleft of her ass.
"How--" She started to say but the cool metal felt cold as it entered her vagina.