My wife Pam and I were visiting Pam's sister-in-law for Christmas. Caroline was divorced from my wife's brother, but we still got on really well with her and their two daughters. The eldest, Sally, had left home and married, but the younger one, Amy, still lived at home while she attended college.
When we arrived, Amy opened the door for us. Pam headed straight into the kitchen to see Caroline, leaving Amy to show me up to the guest room with our bags.
"Good to see you, Uncle Tim," she said.
"You too, kid. How's it feel without Sally?"
"Weird. She calls and stuff, and we Facebook a couple of times a week, but it's not the same."
I dropped our stuff on the bed. "Come and have a look what I've done with my room now I've got it to myself," urged Amy.
I followed her across the landing. She closed the door behind us and sprawled on the bed, which was at least king-size.
"Loads of room," she said, stretching her arms out to demonstrate. "Come on, try it."
I must have looked a little shocked, as she grinned and said, "Nothing to be afraid of," and patted the bed beside her.
"OK," I said slowly, and sat carefully right on the edge of the bed.
"Properly," she urged, and grabbed my shoulders from behind so that I lost my balance. I ended up on my back across the bed, and she playfully pinned me down with her body; I tried to ignore the pressure of her breasts against my chest.
She looked into my face, her expression serious. "Uncle Tim, I know I can trust you. I'd really like to spend some time getting closer to you while you're here this time." Her half-bold, half-embarrassed expression gave me a clue as to what she meant by 'getting closer'.
"Well," I said, suppressing my half-shocked, half-pleased reaction, "we'll have to see what we can do."
I looked at her again in a new light, and had to admit that she was turning into an attractive young woman; she had clearly chosen her fitted top to show off her still-developing but already shapely breasts, and her jeans emphasised her long, slim legs.
"We'll have to be careful," I said. "We can't let Pam and your mum get the slightest idea."
"Don't worry about that," she said. "Mum still treats me like a kid, and I know how to act like one. It'll be easy to find an excuse for you to have to 'look after' me, while they go off and do boring grown-up things."
It turned out she was right; Pam and Caroline went off the next day to the nearest town to do last-minute Christmas shopping, planning to be out until well into the afternoon, while I agreed with a show of reluctance to 'baby-sit', and Amy grudgingly conceded that sure, it would be OK to make a jigsaw or something with Uncle Tim and that – really, Mum! – she could manage to find something for us both to have for lunch.
As the car pulled out of the drive, Amy was already tugging at my hand.
"How about we use the hot tub?" she said. "I'll get my swimsuit on – you brought trunks like Mum said, right?"
Without waiting for an answer, she skipped up the stairs to her room to change. I followed her up and went into the guest room to find my trunks. I changed quickly, coming back out onto the landing. Amy was already there, in a bright yellow two-piece, leaning nonchalantly against the frame of her bedroom door.
"Very nice," I said, appreciating her shapely figure even more in the minimal swimwear.
"Come here and tell me that," she teased. I took the couple of steps over to her, and as I reached her she pulled me towards her and kissed me hard on the mouth.
"That's a sample for later," she said, turning and walking down the stairs. I was sure she knew the impact she was having as I watched her barely-clad bottom swaying.
I followed her to the deck outside the patio doors where the hot tub was installed. Steam was already rising from the surface of the water.
"I made sure it'd be pretty warm," she said, climbing in and lowering herself to her neck in the water.
I climbed in after her and sat facing her. I stretched out, and my foot touched the inside of her calf. I began to caress her lower leg with my foot, and she relaxed, closing her eyes.
After a while I deliberately moved my foot upward, gently stroking the inside of her thigh with my toes, and her eyes opened again. I watched her face as my foot reached the top of her inner thigh, and one toe lightly rubbed between her legs, touching her through the thin fabric.
"Mmm," she said, "I would never have thought of that." And she opened her legs wider to give me more access. I shifted position so that the ball of my foot was pressing against her, and began to caress her rhythmically. Her hands moved to her breasts, squeezing them and stroking her nipples, and I felt her begin to move her hips in time with my own movements, pressing back against me. Her movements became more urgent, and suddenly the water was rippled by her body shaking with pleasure.
When she had finished, her face flushed, her chest moving up and down as she still breathed rapidly, she spoke, her voice full of emotion.
"Wow, Uncle Tim, that was amazing, not like anything that's happened to me when I've just been touching myself."
"Glad you liked it," I said. "Want to stay in the tub a little longer, or have you had enough of being in hot water?"
She obviously got the pun, and replied, "Oh, I think we can stand to hot things up a little more, but you're right, the water is a little warm."
She stood, and stepped out over the rim of the tub onto the deck. I got out too, and we walked across the deck to the patio doors, picking up towels from a stack along the way.
We entered the living room, and I slid the doors shut behind us. Amy walked over to the fireplace, where a log fire was burning, and stood on the rug.
"I could use some help drying off," she hinted.
I went and stood behind her, wrapping my towel around her and starting to dry her.
"I need to take my swimsuit off, silly," she teased. I moved back, and she reached behind her and deftly undid the fastening of her bikini top, then did the same for the bottoms, tossing both garments on the floor.
"Now," she said, "do what you were doing before."
I wrapped the towel round her again, and dried her off; she moved her legs apart so I could reach between them with the towel.
When she was dry, I dropped the towel and moved up close behind her, putting my arms around her waist. She relaxed back against me, then said, "No fair, you still have your trunks on."
