Finally the time had come! My parents went on vacation for two weeks and left the big house to me all alone. My mother Renate 40 and my father Ralf 42 celebrated their wedding anniversary and flew to Hawaii. Of course I would have liked to have seen something of Hawaii too, but I certainly didn't want to disturb them on their wedding anniversary, when, even when they were at home, it got a bit louder in their bedroom at night. So they decided to leave the house to me for the first time... at least that's what I thought.
On the day of departure, my parents were loading the suitcases into Dad's Mercedes when I came out to say goodbye. My mother waved me over to them. She was wearing tight black sweatpants, a tight white top and sneakers for the long flight. She had an incredible figure for her age, which was not the first time I had noticed. Despite having two children, her large breasts were firm and barely sagged. Her ass was toned and her stomach was flat and firm, as were her legs. With her 5' 6" height, long brown hair and bright blue eyes, my father was very lucky to have such a hot wife.
"So my darling, the fridge, freezer and cellar are full of food and drink for 2-3 weeks. But I would like to ask you for a few things, okay? Please vacuum the house once a week, clean the toilet at least once and please, if you invite friends over, make sure nothing breaks, okay?" my mom said sternly.
"Yes, Mom, don't worry, nothing will escalate here," I answered. Of course, I had already planned two house parties and various rounds of gaming with my friends, which isn't a big problem during the summer vacation.
"Well, let's hope so... but I think Lisa will take care of it," she stated as nothing was to think of it.
"Wait, what?" I faltered and gasped for air. Lisa? My big sister Lisa lived in a shared flat in the city center and was studying.
"Didn't we tell you?" asked my father, who now turned around. My father was 5'9" tall, relatively well-trained but without looking as ostentatious as a bodybuilder. The light brown hair was interspersed with small gray strands and his green eyes had something very piercing.
"Since Lisa is also on vacation and her roommates are all staying, she offered to come here so she could have some privacy and take care of you," he said.
I had to swallow first. I liked my sister very much, she was pretty, smart, funny, sometimes a little mean but overall great. We had always got along great, but I was 18 and I finally wanted to be my own boss.
"Mom, Dad, let's be honest... I'm 18 years old! I'm graduating next year and I have a part-time job, I'll be able to take care of myself for two weeks! Come on," I tried to convince them.
My mom looked at me grinning, "Yes that may be, but Lisa just wanted to take a 'vacation' here and I'd rather you be with her than here alone. She's coming tomorrow and will stay for two weeks, end of discussion."
I looked at her sadly and angrily. I wanted to say something else, but the look on my parents' faces told me that I had lost the battle.
"Well, we'll be off then," said my father, "Tim, take care of yourself and your sister, have a good time and we'll call you when we arrive."
I hugged my father and then my mother, who gave me a gentle kiss. I enjoyed the softness of her lips on mine, but the feeling was gone after a second. They got into the car and drove out of the driveway.
Just before my father stepped on the gas, he stopped again, rolled down the window and said, "Oh yes, I forgot to mention: my mom's and my car are off limits, the sauna, hot tub and swimming pool are ready for use and please clean the grill if you use it."
Then they drove off.
I lay on the large couch in the living room, looked at the ceiling and thought. Well, I can probably forget about the house parties. Lisa is certainly no innocent, or even uptight, but she listened to my parents and certainly didn't want to risk breaking anything here. The gaming evenings with the guys shouldn't be a problem though. I took a deep breath in and out. But the loss of the house parties was a big blow. The girls from the stage were keen and since my first time two years ago, it was dead in the water. I thought of the tender kiss of my mom and then of the nocturnal moans that could be heard from time to time in the house. Especially loud on their wedding anniversary. My cock started to twitch and got hard. Then I thought of the one time I saw my parents having sex.
I woke up at night and went to the bathroom when I realized that the moaning was coming from my parents' bedroom. My cock instantly became hard. I ran towards the bathroom and saw that even the door was open. Through the crack of the door, I could see my mother riding my father. She had turned her back on him so that I could see her from the front. Her big tits bounced up and down slightly and I saw my father's long cock thrust into my mother's wet, shiny pussy. She moaned loudly and writhed on dad's cock. I quickly went into the bathroom and jerked off my cock while listening to my mother moan.
I noticed that my hand had pulled my cock out of my boxer shorts by itself. I stroked it slowly and my thoughts drifted to my sister. Lisa who came to babysit me. I hadn't seen her for 4-5 months because she was busy with exams. I thought about how we were on a beach in the Caribbean last summer and how her tight red bikini showed off her firm tits and her great ass more than it covered them. At the thought of my sister's ass, I cum and a reasonably large load of cum landed on my stomach, my legs and a few drops on my chin. I went into the bathroom to shower and thought that I could certainly enjoy my sister's time a little.
The next morning I was awakened by loud stomping. I rubbed my eyes. Stretched and pricked up my ears. I heard footsteps on the stairs to the upper floor, which was right outside my room, as well as the sound of something heavy and cursing, "This damn suitcase..."
I didn't understand the rest. I got up and went out to the stairs in just my boxers. Halfway up, I saw my sister struggling to heave a huge suitcase up the stairs.
"Good heavens, sis, did you take all your furniture with you?" I asked, and Lisa turned her head to me and shouted, "Tim, hi."
She let go of the suitcase, which slid straight down the stairs, jumped up the last few steps and fell into my arms. She had her long brown hair in a bun, and her bright blue-green eyes flashed when she saw me. Her toned but very feminine body was squeezed into a top that was much too small, leaving her belly button exposed, and hot pants that were much too tight, which, as I later saw, showed almost half of her ass cheeks.
"Hi Lisa," I said, laughing and returning her embrace.
"Why didn't you wake me up? I can carry the suitcase upstairs."
She hugged me even tighter and I could feel that she wasn't wearing a bra under her top, her nipples weren't really hard but they were noticeable.
"Oh, I didn't want to wake you up, little brother, but it seems I didn't succeed," she said.
We let go of each other and I carried the suitcase upstairs.
"Where do you want to sleep? Your old room is now a gym for mom and you've always hated the bed in the guest room," I asked her.
"Oh, I think Mom and Dad won't mind if I take their bedroom, what do you think?" she asked, grinning broadly at me, "I'm really looking forward to relaxing here and spending time with you, Tim. And don't worry, if you ever want the house to yourself, I'll clear off for an evening."
I carried the suitcase in front of my parents' huge bed and put it down. "Well, I had a few things planned, but I thought I had a place where no one would bother me," I said, looking at my sister with a playful look on my face.
"Oh, it's no problem, I want to enjoy this too. Only house parties are strictly forbidden," she said more seriously than I was used to from her.
"All right," I rolled my eyes and said, „You can get settled first, I'll make us breakfast."
Lisa grinned, kissed me on the cheek, and I went downstairs, but I kept an eye on her tits and ass. Yep, no bra and way too skimpy hot pants, as suspected.
I made us an omelette and we chatted about this and that. The university, the school and all that kind of stuff. We decided to enjoy the sun a bit, because it was a hot summer day. After we had changed, we lay on the deckchairs in the garden and continued chatting. I had to force myself not to stare at her tight black bikini and not to bulge in my blue swimming shorts. After a while she asked, "And Tim, how are things with the girls? Got yourself a girlfriend again? Or maybe you're even in a relationship?"
She grinned cheekily at me, she knew about my first time and also about my dry spell afterwards.
"No, unfortunately neither," I sighed. She looked at me thoughtfully, "But why? You're such a handsome young man, tall, fit and funny, and you're popular too, so what's the problem?"
I realized that I was blushing. She wasn't wrong, I was actually popular in my clique and at 5'10" I was definitely not short. I was also reasonably fit. With my brown short hair and green eyes, which I got from my father, I looked a lot like him.
"I don't know, Lisa, it just hasn't happened lately. Besides, I haven't really met anyone that I'd say yes, that's who I want. But how about you?"
She looked annoyed at the sky, "Well, since I broke up with David, as you know, it was only two one-night stands and only out of grief, so I know how you feel."
She looked thoughtfully at the sky and I had the opportunity to take a closer look at her body. Her firm, full breasts were clearly visible through the skimpy bikini. A few beads of sweat ran down from them onto her flat stomach. I could see her pubic mound through her bikini bottoms and she had crossed her long, smooth legs. On her cute little feet, I saw white-painted toenails to match her fingernails.
I felt my cock twitch, "Um, I'm going to go into the water, it's really hot," I said and got up.
