Amy lifted her head from my shoulder; her face was wet with tears.
"Are you OK?" I asked anxiously.
"Oh yes," she said, "don't worry, nothing's wrong, just some powerful emotions. You know what, Mum and Pam will be back soon, we'd better keep up appearances."
We got dressed -- I thought to myself that after the morning's activities we could have done with a shower, but it was pretty unlikely that my wife or her sister would have the slightest idea what we'd been doing -- made some sandwiches, and went back to the jigsaw.
When Pam and Caroline returned, they were full of talk about the Christmas lights, the shops, and the gifts they'd bought, and we chatted until it started going dark. It was Christmas Eve, and Caroline had made a casserole for dinner. Then we watched TV till quite late, and went to bed. I wondered if Amy would come up with any adventures that night, but we all slept without any diversions.
The next morning, Pam and Caroline immersed themselves in preparations for the Christmas lunch, while Amy and I carried out with our jigsaw.
"When do you think we'll get some more time alone?" she asked.
"Don't worry, I have a plan," I said. "Just watch."
When lunch was all in hand, Pam and Caroline came back into the living room, and my wife said, "Now, how about we all open our presents?"
I'd bought presents for Amy and Caroline of course without knowing the turn that events would take, and I made a mental note to buy something really special for my niece as soon as the shops were open again. Pam and Caroline opened their presents from me, and both glanced at each other with a broad smile.
"A pamper day -- how thoughtful!" said Caroline. "And tomorrow, too -- I hadn't thought they'd open on Boxing Day."
"Only for these special gift vouchers," I said, managing to wink at Amy without Pam or Caroline noticing. She winked back, and I could see the anticipation in her face already.
We opened the rest of the presents, then sat down at the table and enjoyed the spread. Afterwards, we went back into the living room; I sat on one of the sofas, and Amy did a great job of playfully bouncing on the seat next to me, then virtually into my lap.
"Don't hassle your uncle," chided Caroline, "After a meal like that, he probably wants a nap."
Amy pouted convincingly, then said, "You don't mind, do you, Uncle Tim?"
"Of course not," I smiled, and gave her a convincing hug. She settled down against me, and Caroline shrugged, turning her attention to the Bond movie on TV, that we'd all seen dozens of times before. As Sean Connery made love to the beautiful spy, I bent to Amy's ear and said in a low voice, "I wouldn't mind being on a slow boat to China with you right now." She smiled, and I felt her press herself more closely into my lap, unnoticed by her mother and aunt.
When the film finished, Caroline got up and made snacks for us -- nobody felt like a substantial meal after the Christmas lunch -- and Amy and I ate still in our comfortable position.
"We'd better go and dig some things out for tomorrow," said Pam, and she and Caroline went upstairs to find their swimsuits, towels, and whatever they'd need to be 'pampered'.
As soon as they were out of the room, Amy turned to me and kissed me on the lips with a surprising urgency, to which I responded whole-heartedly. After a short while, I felt her hand on mine, and she undid just the button of her jeans and guided my hand inside the elastic of her panties. I slid my hand over her warm mound until my fingers met the wetness of her entrance and the hard nub of her clitoris. I began to touch her, doing my best to imitate the way I'd seen her touch herself; she put her hands to her breasts and stroked her nipples through her t-shirt. It wasn't long before she was gasping into my ear and I felt her orgasm against my hand.
We both heard footsteps on the stairs, and I hastily withdrew my hand; Amy refastened her jeans, and when Pam and Caroline re-entered the room we were seated apart, both doing our best to look fascinated by the inane 'review of the year' show on the TV.
"Probably time we all went to bed," suggested Caroline. "Pam and I have to be up early to start our day, and I thought you two could take a look at the sales in town."
"Sounds great, Mum," said Amy. "I got some vouchers for Christmas, and I can drag Uncle Tim around the clothes shops while I try stuff on."
"I'll probably end up in the coffee shop after about ten minutes," I warned.
Pam nodded. "He isn't great at shopping, so I wouldn't get your hopes up,"
"OK," said Amy, "but I definitely want to get some new stuff." She got up, and did a convincing job of going up the stairs as though she was suddenly bored of the stuffy adults and their lack of enthusiasm for anything a young woman would find interesting.
The next morning, Pam and Caroline left for their pamper day just after breakfast, and Amy and I set off to walk into town to see what the sales had to offer.
"Do you think it would be too conspicuous if we held hands?" asked Amy.
"I don't have a problem with that," I said. "If we see someone you know, you can just do the 'my boring uncle doesn't think I'm old enough to go off around town by myself' act, and everyone will be convinced."
She grinned, and took my hand. When we reached the main shopping street, she stopped. "You won't really go and sit in the coffee shop, will you?"
"Of course not," I grinned. "I have to tell you what I think of the clothes you're going to try on, don't I?"
She smiled, and pulled me into the first shop, a fashion chain with its own range of clothing for young women. We headed for the right section, and Amy grabbed an armful of garments. She walked toward the changing rooms, glanced around, and said, "Guess what? Nobody about. Come on!"
Grasping her intention, I followed her into the furthest cubicle along. Fortunately the cubicles were a generous size, and she had space to undress down to her underwear. She could tell I was enjoying looking at her, and only reluctantly began to try on the various garments she'd selected.
I gave my opinion on each, and when she reached a red dress cut low at the front, I said, "Wow -- that really suits your figure. It'd do for a ball or a cocktail party. What do you think?"
She came into my arms and said, smiling, "What I think is that I'll buy it, wear it for you, and let you take it off me as soon as possible."
She changed back into her own clothes, and we exited the cubicle -- again without being spotted. She paid for the dress, and soon we were back out in the street.
"Now," I said, "there's somewhere I want to take you shopping." I took her elbow, and guided her toward an expensive jeweller's. She turned to me, her eyes wide, but didn't say anything.
