We stopped at the large leather sofa and all sat down with me in the middle. Mark turned my face towards him to start kissing me again and Launa ran h...r hand up and down my leg just inching a little up my skirt.Soon I was being pulled to my feet, sandwiched between them both Mark started taking off my T-shirt and bra while Launa undid the button on my skirt and let it fall to the floor. In seconds all 3 of us were naked. Mark's cock was hard and pushing up against my pelvis while Launa's soft. I’m just going to use my jack and lugwrench. Yours is a little flimsy.”“Oh my God really, you’ll change it for me. Thank you, if I had to do it I think I’d be stranded here forever.”“Well don’t worry, I’ll have you up and running in no time. The rain is starting to pick up so if you want you can wait in my truck where it’s dry.” She followed me to my truck as she talked on her phone.“Good news, someone is going to change the tire for me. No, it’s someone from work who happened to be passing by.. “It feels all wrong,” I whined. “Sisters and brothers can’t be lovers.” My sister soothed me, “We’re not, I’m teaching you the way an older sister should, the things I’ve had to learn first because I’m the oldest.”Donna continued, “I love to suck dick and I’m good at it. For a long time, the only guy I let fuck me was Jerry, my first boyfriend and the man I will soon marry. As dad knew, I went into the woods with a lot of guys, but that was mainly to smoke pot. I would give a guy a blow job to. You stumble with me still clamped around your waist and your cock still buried deep inside my hot, dripping pussy. The angle of your movement brushing your pelvis against my clit is driving me nuts, but it’s too hard for us to move like this and reluctantly you signal for me to release your waist, which I do, and you let me down. I glance about. A fallen tree looks the perfect height. I move towards it and bend over, spreading my legs wide to offer you my pussy to do with as you will. You tease.