Gone camping

While camping in the forest I met a brother and sister fucking each other.

A long weekend of camping and gold panning is what I had been planning for some time
I set up camp not far from the river in the state forest. Only to see a caravan not far away also camping in the forest. A couple with teenaged children. A boy who looked about 14 and his 16-year-old sister. All four of them came out of the van in bathers and they went down to the river and started swimming around. I sat on the edge of the river and started doing some panning. I glanced up and noticed both the mother and daughter's bikini top had become see-through once they got wet. The mother had a large set of breasts nice big dark areolas, the daughter's tits were smaller but firmer, her areolas were just as dark but also smaller.
They spent some time splashing about before returning to the van.
That night I am laying in my bed when I hear a noise outside. I get up to have a piss. It is 1 O'clock in the morning.
I am standing close to a tree pissing when I see the brother and sister kissing it took me a few seconds to realize they were both naked. I quickly pull my phone out and record what I am seeing the brother sucking on his sister's breasts and then him going to his knees and licking her out. She then stopped him turned around and let him fuck her from behind in a standing fuck.
They saw me watching am even waved to me while they continued to fuck. Once they were done, they came over to me, and they led me into my own tent. He stood back while his sister knelt down and sucked my cock. Then she got me on my back climbed on to my cock with her cream filled pussy and we had a sloppy fuck while her brother watched us. She rode me cowgirl sitting straight up using her knees to bounce up and down on my cock. I just watched her boobs bounce as she fucked herself on my cock.
I shot my load into her pussy. She got off of me She then lay next to me. We kissed and I cupped and squeezed her breasts. Then I felt my cock being sucked. I realized it was her brother. Once I was hard again, she climbed back onto my cock, this time she lay on me, and we kissed some more as her brother got his cock up her arse. She then fucked herself on both cocks at once.
I felt him cum in her arse and then I shot my second load in her pussy we separated and he went down on his sister and fingered her arse. She gave me one last kiss and then they left.
The next day after breakfast the father and daughter got in the car he was going to the nearest town to get bread and other things including some lunch.
He was talking to his wife who was standing next to the car. I looked at him and noticed his daughters head bobbing up and down in front of him. She was sucking her father's cock and her mother was watching. Then she sat up with cum on her face.
I went about my day. I went down to the stream and started panning for gold. Suddenly the mother and son came down to the river both completely naked. The mother was carrying a towel.
Then they both went swimming together. After a while the mother lay her towel out on a grassy flat area not far from me and she lay on the towel. Her son came over to her got down between her legs and started licking her out.
I stopped panning and watched him fuck his mother.
Our eyes met as her son fucked. She smiled at me and I smiled back. When her son pulled, she waved me over and asked if I wanted a turn.
I stripped out of my clothes and stood there as her son was licking her pussy again.
I could not believe I was doing this here I was last night I sloppy fucked this woman's daughter after her brother fucked her. Now I am fucking this woman in broad day light in a forest beside a river her naked son only a few feet away and yes this was another sloppy fuck and yes me dick was getting coated in his sperm again. After we finished we all washed off in the river and returned to camp.
I saw the car return, and they hopped out and went into the camper and had lunch together.
Later they invited me over for dinner. I didn't give a thought to how cramped it was going to be sitting at the table with five people in the camper. I sat with the mother on one side the daughter on the other the father was next to the daughter and mother was next to son. The daughter took my arm and put it around her, and I started cupping her boob with it. She reaches up turned my head towards her and kissed me on the lips her tongue was in my mouth while her family sat around and watched up. We sat there and kissed my hand went between her lets and I started fingering her pussy her hand ended up in my pants where she started stroking my cock.
I suddenly realized we were alone I looked down the other end of the van and saw the son going down on his mother who was laying on the double bed at one end of the van. His father was behind him fucking his son's arse.
The girl then showed me the table and bench converted to another bed. We both stripped off and we kissed some more she sucked my cock and then we fucked. After we finished, I looked again and the son was now fucking his mother while the father lay next to them and watched. After a break I fucked the girl a second time and we fell asleep in each other's arms. The next morning, I woke up to find the mother cooking breakfast while the daughter sucked her brother's cock and her father fucked her. I got up kissed the mother and went back to my things while I thought about what I should do. If I stayed how long would it be before I found myself licking out a muff full of cum. Right now, I am convinced the daughter would be sitting on my face leaking her father's sperm. How long before the father decided to fuck me in the arse.
Should I stay or should I go home?