After an hour or so of paddling around in the water trying to find shells and cool rocks, it was now disappointingly time for us to put our clothes on. I watched wistfully as Lily squeezed her giant breasts back into her bikini top and her large round butt back into her bottoms. As we walked back, we did not mention the show Rose put on for her sister. Lily asked lots of questions about our relationship such as how we met and all the questions that she had never been too interested in before. With each question, she seemed quite genuinely interested and there was no awkwardness surrounding the fact that she had just watched her sister having sex right next to her.
The sun was low on the horizon as we approached their aunt and uncle's property. We could smell the dinner that their aunt had cooked in the air making our mouths water as we trotted up the lane.
"You were out all day, you must be exhausted!" Their aunt exclaimed. We all looked at one another nodding knowingly. "Did you go far?"
We nodded and slumped into the seats around the table. Their aunt chattered away while we all sat out on the veranda eating, drinking, and playing board games until the sun had thoroughly set and the garden lights had come on bathing us in a warm orange glow. Throughout the meal, Rose who was sitting across from me, and Lily who had been sitting on my left, had been occasionally rubbing up against my leg. They did this without the other one realising. More importantly, their Aunt and Uncle were none the wiser.
With a big sigh, their uncle got up, declared that he was going to bed and that if we were wanting to go to a cliff side monastery to eat lunch the following day we need to be getting up at a good time in the morning. Their aunt said she would go wash the dishes then turn in and recommended that we all go to bed as well. Rose offered to help with the dishes telling Lily and I to go on and get ready for bed without her. We wandered towards the cabin talking under our breath so no one would hear us.
"Will you visit me after she's gone to sleep?"
"Absolutely, I'll be with you as soon as she's snoring."
"Please don't make me wait long."
The sky, usually a vista of stars, was obscured by a thick cover of cloud. I made my way into the cabin and into the little bedroom, closing the door behind me. I got ready for bed, cleaned my teeth, and changed into my pyjamas. Climbing into bed I played on my phone while I waited for Rose. She arrived back 30 minutes later and started bustling around the room chattering away.
"It looks like it is going to rain," she said while stripping her clothes off and staring at herself in the mirror.
"Yeah, it's clouded over really fast," I replied, watching her nipples as she rubbed her potions and creams into her soft pink skin.
"My uncle was saying it doesn't usually rain here but when it does it's really heavy, which makes doing anything almost impossible."
"Well let's hope it doesn't come to that, I'm looking forward to going to this restaurant."
"Yeah I know, but we can always go the next day if it does rain."
"I can't imagine it would be that bad?"
"Well me neither, but I guess if it rains we will see."
She turned the light out and got into bed, wrapping herself up tightly, and closing her eyes. I waited 20 minutes until the usual sounds of her sleeping were obvious next to me.
"Rose?" I said knowing if she were actually asleep it would take a ship's foghorn, an earthquake, and the apocalypse to wake her up. I had known for years that she was not going to wake up for anything other than her own body telling her it was time to wake up.
I jumped out of bed, hearing the soft patter of rain on the roof of the cabin. I grabbed my trousers and coat before slipping out of the room, unlocking the cabin and then quietly making my way over to the caravan, where I knocked on the door. The rain had slowly gotten heavier as I padded across the lawn. I heard the lock click and the door opened a crack, casting a warm slither of light across the garden.
"Lily it's me," I said. She opened the door and let me in, keeping herself hidden until she closed it behind me and locked it. I could see she had closed every curtain and shutter and made the bed. The little radio she always brought with her to play while she slept was tuned to a classical music station. The little space heater was whirring, making the van a welcome experience in contrast to the sudden chill outside. I turned to Lily and gasped. She was wearing the lingerie her mother had scolded her over so angrily those months ago. She stood waiting for my reaction, her eyes wide. Her breasts barely fit in the lilac bra, spilling ample amounts of her pale pink skin over the top, her breasts being lifted by the bra was an incredible sight. It was lace and very revealing. Her nipple was visible through the mesh. Her panties were equally as alluring and see through. Lily twirled, showing me the back of the panties which were disappearing into the crack of her butt. I let out a moan and bit my lip. She looked incredible, like something from a fantasy, and I felt myself stiffen immediately.
"What do you think?" She said, apprehension on her face.
"You look..." I cast around for the words that could describe how she looked.
"Radiant," I settled on.
"No one has ever seen me like this before." The rain started to patter on the roof of the caravan.
"I'm glad I could be the first." I moved towards her and we began to kiss, at first gentle, but soon with a passion that would rival that of lovers forced apart for years. She grabbed at my clothes taking them off item by item in between kissing me until finally I was naked and her hand was clasped around my now monstrous sized, throbbing cock.
She took a step back and I removed her panties, taking great care to stroke her butt as I removed them. She reached behind herself and unclasped her bra, letting it drop to the ground releasing her giant breasts. Her nipples were enormous and almost as hard as my cock. I pushed her onto the bed and climbed on top of her, taking one of her erect nipples in my mouth, sucking as she gasped and moaned.
"I love you," she said suddenly "I always have, since the moment she brought you round for that first dinner."
"I love you too," I said, knowing it to be true. Knowing that I had loved both her and her sister for some time now. The feeling began slowly, but took control like a wildfire that had suddenly been released into the forest.
"Really?" She asked as she guided the enormous head of my cock into her drenched pussy.
"Really," I replied, bringing my lips to hers once more. I slid everything I had as deep as I could go without hurting her. She kissed me with renewed enthusiasm as the rain picked up outside. I moved faster as Lily began to moan surprisingly loud. Her moans masked from the outside world by the sound of the rain now hammering on the roof. I got harder once more, watching the rippling of her giant breasts as I thrusted into her. Her voice, now moaning even louder, was drowned out by the deafening, thundering sound of the rain on the roof.
With each thrust she opened her mouth, but I couldn't hear anything that she was saying, her eyes rolling as I thrust harder and harder. I made love to her, kissing her neck, her breasts, feeling her hands all over me. The rain got yet even louder and now I couldn't hear myself think. I focused on the only thing I knew in that moment, the only goal I had, to make Lily cum. I could see her mouthing the words "I love you" as I felt the build-up. Knowing that I couldn't keep this up much longer as finally she started to shake and quiver, I buried my cock as far as I could put it and released, filling her with my hot seed. I pulled out to shoot some of my hot cum over her breasts, but as I did she released a spray like a fountain and soaked me.
Her eyes suddenly wide in horror.
"I'm sorry," I could see her mouth.
I knew she wouldn't hear me so I lean in and kissed her, moving to her ear and saying as loud as I could without shouting, "Lily, I love you, there is nothing to be sorry about, and I liked it."
She smiled and grabbed a towel, cleaning us both down. The rain did not stop, but eventually I was back in my trousers and coat and we were kissing goodbye at the door like lovers that wouldn't see each other again for a long time, despite the fact that she was sleeping on the same property. I flicked the light out in the caravan and opened the door, stepping into the deluge. Splashing back to the cabin through the puddles now dominating the garden. I took a look over my shoulder to see the caravan door firmly closed and safe from the torrential downpour I made my way back inside and locked the door.
Trotting over to the bedroom, I tiptoed inside to find the light on and Rose awake. She looked at me as I entered, sopping wet and grumpy looking, my hatred of rain plastered across my face. The rain still was incredibly loud in here but less so than in the caravan, and as I towelled myself dry I looked over at the girl who I was sure was still going to be asleep.
"Where did you go?" she asked.
"To the toilet."
"Baby you were gone a long time."
"You know I don't like rain."
She moved towards my now naked body and put the end of my cock in her mouth.
"Have you been fucking Lily?" she asked, taking my cock out of her mouth.
I looked at her but didn't answer.
"This morning you tasted just like this, and then on the beach you tasted like you normally do, and now you taste all sweet again."
I stayed silent, knowing to reply would only provoke an argument.
"Please answer me. You were just having sex with her, weren't you?"
"Yes," I said, not taking my eyes off of her.