For newcomers who might like to catch up on the previous chapters, a quick summary follows.
On holiday in Devon with my parents and brother Matt, we make friends with Abi and her daughter Sally. So begins a series of increasingly exciting sexual adventures.
* Chapter One - I accidentally stumble across Matt fucking Sally. Abi catches me watching them, and she masturbates with me while we both watch.
* Chapter Two - That evening in our bedroom, I tell Matt that I saw him with Sally. We each masturbate, and he ejaculates on my naked body.
* Chapter Three - The next day, I meet Sally on the beach while skinny-dipping and sunbathing topless, and we have sex.
* Chapter Four -- That night, Sally asks me to film her and Matt fucking. Afterwards, they film me masturbating.
Now read on...
*****
The next morning, after breakfast, I was sitting by the pool reading a book. Matt had stayed all night with Sally in her room, and only crept back to get some clean clothes before breakfast. He looked a bit tired, but happy, and so did Sally when I saw her at breakfast. Lucky them: I'd just had myself to play with.
After a while, I heard a car pull into the car park and saw Abi getting out. She saw me and waved, so I waved back. She came over, with a rather sheepish grin on her face.
"Ah, the Prodigal Mother returns," I said, smiling back.
"I'm really sorry about last night," she said. "Sally phoned and told me how kind you've all been, making sure she's okay and everything."
"It's fine," I laughed. "I'm afraid my parents thought it was all a bit of a joke. I think you're going to get wound up something rotten for the rest of the week."
"Serve me right, I suppose," she said. "Are they around now? I really should go and see them."
"I think they're down on the beach," I said. "Sally's with them as far as I know."
"Yes, she did say that was what she was planning to do. Look, if you're not going anywhere do you mind looking after my bag while I pop down and see them?"
"I think they might have gone right round to the main beach," I said.
"Oh, in that case I'll call Sally and see," she decided, delving in her bag for her mobile. After a few seconds, someone at the other end answered, although from the half of the conversation I could hear it didn't seem to be Sally. Nevertheless, Abi seemed happy enough as she put her phone away again.
"That was your Dad," she said. "Your Mum, Sally and Matt have just gone in the sea with the surfboards, so they could be a while. I might as well freshen up and have a coffee; do you fancy one too?"
"Sure," I said. "Why don't I order them while you pop upstairs?"
I ordered two coffees from reception, and Abi came down just as the waitress had brought them out. She had put on a skirt and a clean white blouse, and I noticed straight away that she didn't have a bra on underneath. Her dark nipples looked hard: had she been touching them already? She flopped down on a chair, and her breasts bounced interestingly. I wasn't wearing a bra or bikini top either, though I'd put on a loose t-shirt so it wasn't too obvious. Even so, I wondered if Abi had noticed.
"That's better," she said, crossing her legs and revealing a nice expanse of bare thigh. "I felt a bit sticky after that drive back, but I'll feel better after a coffee."
She looked good. And suddenly I wanted her. My head gave a little spin; with the others out of the way, what better chance would we have? Was she already thinking the same? After the other day, we did have unfinished business.
"Did you have a good time?" I said. It sounded a bit lame, but I had to say something. "Is your head okay?"
"Oh, I'm fine now," she replied. "I wasn't that much over the limit, but I didn't want to take any chances. I hadn't seen her for a while, so it was good to catch up on the gossip - which is probably why I forget what I was doing and drink a bit too much."
Then she leant over and squeezed my knee.
"And how about you Annie?" she said, and I noticed that she was blushing slightly. "We haven't had much of a chance to speak since...you know. I began to think you were regretting what happened."
"Not at all," I said, smiling back. "Actually, I was just wondering when we'd have a chance to, you know, follow it up."
Her hand was still on my knee. Without wasting any time, she slid her fingers round and caressed the smooth skin at the back of my knee, then slowly slid them up the underside of my thigh, squeezing the warm firm flesh. I shivered slightly at her touch. Her hand moved up to the top of my thigh and stroked under the hem of my short skirt. A little tremor of desire ran through my body. My eyes flicked up as I caught sight of the waitress moving inside, and Abi sensed my nervousness. It wouldn't do to get caught by the staff.
"Finish your coffee, then come to my room," she whispered. She picked up her cup and went indoors, leaving me there with my heart thumping in anticipation. I poured some more milk into my coffee and drank it down as quickly as I was able without looking too obvious. It was embarrassing -- my hand was shaking so much I nearly spilt it all over myself. Trying to look nonchalant, I strolled in through the glass doors into the lounge and went upstairs. It was so stupid: I found myself looking round guiltily as I turned left towards Abi and Sally's room instead of going up a flight to mine. Abi's door was ajar, and I knocked softly, then pushed it open. She was there by the window. With a soft click, the door closed behind me.
I walked over to her, and she put her hand on my arm.
"You know, I kept thinking of you last night," she said. "It might have been the drink, but I masturbated myself to sleep, thinking of you, wishing you were there cuddled up next to me."
I blushed, thinking of how I had been masturbating too, though not alone, and of everything else that had happened since that first afternoon, only two days ago.
"I'm here now," I said, and I leant in towards her and we kissed, gently at first, our lips just touching. Then she put her arms around me and pulled me towards her, kissing me passionately, taking my lower lip between hers and sucking at it. She was breathing heavily and I felt her start to push my t-shirt up my back, her hands on the bare skin of my back. I could feel myself starting to get aroused. But I was feeling another sensation; and I knew if I didn't sort it out now, it would be even worse to have to break off later.
Abi was nibbling at my lip now, and her hands grasped the cheeks of my firm little bum, squeezing them through my skirt. Her hand touched my bare thigh and began to pull up my skirt. Reluctantly, I pulled my mouth away.
"I have to pee," I confessed. "It's the coffee...on top of two cups for breakfast... I'll be as quick as I can. Don't go anywhere!"
Such a strange expression came over Abi's face.
"Don't worry, Abi! I'll only be a minute," I said quickly, thinking maybe she was cross because I'd stopped her kissing me. She blushed pink, and I could see her struggling as if she wasn't sure if she dared say something.
"Please, Annie, don't hate me, but I... I'd like to watch you pee," she mumbled. "I know I'm weird and sick, but I ..."
I stopped her before she talked herself out of it. "I don't think you're weird or sick," I said. "I think that's kind of exciting. Just as long as it's just wee you're into."
"Oh god no," she said quickly "Just wee, honest. But Annie...if it's ok...I want to see you pee in your knickers."
Crikey! That was a bit kinkier than just watching me on the loo.
"How do you mean?" I asked. "Do you want me to sit on the loo with my panties on?"