Fucking my sister where we couldn't be seen 4

In the backseat of my uncle's truck was loaded with boxes and only one seat available and my sister wants to get in.Kinda packed back here i said.

By now I got a hard on when I saw how she got in ,ass first backing into me to sit on my lap.My god that nice heart shaped ass in those short silk shorts with plenty of her ass cheeks showing and the way she wiggled it towards me.Her panty lines showing a small bikini style one that looked so sexy and the view i got made my cock even more hard. I knew as soon as she sat on my lap she eould feel how hard I was.She turned to look at me and sat in my lap wiggling her ass on my crotch.It was dark by now and no way anyone could see us back there.Being a bumpy ,dirt road and uneven i know she felt my 71/2" cock so I put both hands on each side of her waist to hold her steady when it got rough and held her hips firmly and kept her down on my cock.I noticed she started to lean forward on the seat and put her head down like she was resting but she was breathing heavily and put her ass up alittle in the air and back down.She was bouncing on my crotch so I let go of her hips and slowly put my hands on the inside of her low cut shirt and had those big magnificent knockers in my hands and felt and squeezed until she threw her head back as I worked her juggs out of her bra. Her big tits out of her bra,the bumpy dirt road,her ass right on my cock i could tell she was enjoying it and so was i! You guys ok back there? my Uncle said.Yeah we are i answered but my sister didnt because I was feeling out her big tits hanging down and playing with her hard nipples. Mmmmm she said when I put one hand between her legs figured id keep going because it was completely dark. I heard her whisper to me,Get off with me.Then forced my hand between her legs and I cupped her pussy.I wanted to pull my hard cock out and pull her shorts and panties to the side and slide my raging hard on up her nice ,hairy,wet cunt.I slipped two fingers in her and damn she was nice n wet as I put them in my mouth and licked her pussy juice off.
She was thinking the same thing when i felt her rise up off me and tugged at my pants meaning she did want me to fuck her there as we had quite a ways to go with the dirt road,the noise the truck made and them oblivious to us in the back where it was completely dark and couldnt see a thing.They were busy drinking beer and smoking cigarettes with the radio going. This was the older sister that got drunk on me in her camaro when we drove into the woods and partied until she passed out sitting on my lap in drivers seat.Must have planned that one out because she had plenty of beer for us and she fixed her makeup the way I like.She wore a red silk short shorts for that night and a low cut shirt that when she even slightly bent foward the view of her big knockers and that cleavage was amazing. I took advantage of her and ran my hands all over her,pulled her shirt up and let those juggs out of a brown silk bra that hooked in front.I made her stay in my lap but spread her legs wide so I could feel,play,finger and see her wet hairy pussy.Matching brow silk bikini panties as I fingered her cunt as she moaned. I whispered to her,"Im keeping your panties when I take them off you back at the trailer."I was a man of my word when I pulled them off her and fucked her doggystyle, spread her legs holding them up,riding my cock I think thar was the time I positioned her mirror against the wall facing her bed so I can see her face when I fucked her from behind. Loved it when I gripped her hips and fucked her brains out and those tits swinging around made me fuck harder and faster as I could see her face in the mirror. Eyes rolled up,mouth slightly open and moaning out loud!