Once i got it on i looked it the mirror seeing how it looks and when i turned around i saw that it exposes half of my butt and showing my panties.I fe...t like such a slut so i took it off.After a couple of minutes of trying on my big sisters clothes my sister entered my room and dropped a shoe box saying"Hey sis i see you're all ready wearing my clothes haha, anyways here is some more clothes i don't need".As i opened the box i saw a couple of t-shirts inside with a bikini and some of her. Quietly strumming her clit, she responded as if talking in her sleep with quiet moans and my name. I angled myself to squeeze my penis between her thighs, my fingertips guiding my glans to her moist lips and inside. I kept to short, gentle, shallow strokes, relaxing against her, one hand gently squishing her breasts while the other casually strummed her clit."Joseph," she muttered again. "Oh God," she added just as sleepily and then, "Fuck me."As commanded, I stroked deeper. I only knew she had. She placed her hands on her knees as she straightened up. "Holy fuck," I said as my toes curled. Samantha rode up and down on my dick with her hands dragging through her hair. "Come on big boy, just a moment longer," Samantha teased. Her big tits swayed from side to side as she slowly used her knees to push her body up and down on my dick. I shook my head. The site of her body riding me in this fashion was enough. Samantha swung her knees from under her forcibly, impaling herself on my dick.. It was hot and clammy, so she decided to remove her tight fitting t-shirt. She tightened one strap of her turquoise sheen cotton bra, cupping her breasts with her arm. They pushed up slightly and she noticed the faintest hint of a love bite, placed just above her nipple the evening before. She felt a slight tingle in the base of her stomach, as she recalled precisely how gently his tongue had traced a circuitous route, down along the side of her neck to her shoulder, then proceeding to page.