I was still in my room jerking off and now Kelly, my girlfriend's older sister, was standing in front of me staring at my erect member. Embarrassed, I...quickly reached down grabbing for my pants to pull them back up."Oh no. Please don't stop," she exclaimed as she grabbed my hand and she sat down beside me. "That was really turning me on. Please keep going." But…" I replied as I slowly kept my hand moving up and down my shaft."Yeah I know I'm your girlfriend's sister, but I promise I won't. I watched as she stood and kicked off her shoes before slipping her jumper over her head revealing a pink bra with smaller breasts than mine but from what I could see, perfectly formed. Putting her arms around her back she unzipped her denim skirt sliding it down so I could see her clad in a soft plum pair of lace panties which rose to a flat tummy. She looked so sexy and I was entranced by the sight in front of me.Unclasping her bra she exposed her lovely breasts with perky brown nipples which. She was petite; standing about five feet four inches with dark brown hair, a smile that could distract the most focused concentration, eyes so soft that they made anyone melt and her perky tits which Rich loved to play with. Tonight she had her hair in braided pig tails, a black tshirt, blue lace shorts, and thigh high knitted socks which stopped just below her lovely ass. He slapped her ass again before grabbing her by the hand and leading her to the large couch in the living room. “Bend. .no wait we just met" I moan....he doesn't stop..he's kissing my neck...groping at my ass...he turns me around..and kisses me hard...he and I moan in each others mouths....he picks me up...my legs wrapped around his waist and my arms around his neck..he walks slowly to his room...leaning me against the wall...then he drops me against his bed...his eyes swimming over my body...hour glass shaped curves....my big tits...up to my ticket lips..then to my big brown eyes...he takes off his shirt...and.