She does and you are.

Mira walks around the bed to her bedside table and gets a small blue plastic bottle from the drawer. Popping the cap she squirts some liquid on her palm before setting the bottle back down on the nightstand. You glance at the bottle and see the logo "Durex Play" written on it. Looking back to her stepsister you see her grin.

"I think you'll like this Leah." She tells you.

Mira grips the big black dildo in her oiled fist and slowly pumps her hand up and down the thick veined shaft of the strap on. The shiny rubber toy glistens as it is coated in the lube. The mixed feelings of fear and excitement both escalate steadily as your stepsister prepares the sextoy for use. Your breathing is hard and rapid and you can feel the rush of adrenaline flushing your skin.

With the toy now well and truly lubricated, Mira returns to the foot of the bed. Suddenly she grasps you by the ankles and a hard tug pulls you to the foot of the bed. She lifts and spreads your legs as she bends forward so that your knees are over her shoulders. Pushing forward Mira presses close to you and you feel the hard oiled tip of the dildo slap your thigh.

"Last chance to back out Leah." Mira says.

"Do it." You say immediately, almost shouting the words with the **** need you are feeling by this time.

Mira guides the slick lubed tip a couple of times up and down the crease of your virgin pussy and pushes her hips forward. There is the briefest moment of tight resistance from your new vagina before the thick black shaft slides smoothly into your wet and ready quim. The long thick toy fills you, your pussy stretching to accomodate it's girth. A moment later and your labia is tingling and hot.

"Oh! Mira?." You cry out. "What's happening?"

"Heh heh, that's the lube little sister." Mira chuckles. "You wanted to know how having a pussy felt. This will make you feel it even more."

"It tickles and feels hot." You tell her. "Oh shit Mira please, fuck me please."

Your stepsister does exactly as you ask. The hard shaft inside you slides easily in and out of you slick pussy and after a second or two to get her rhythem Mira ploughs your no longer virgin pussy with obvious enjoyment. The full length of the big toy thrusts up inside you and Mira's crotch hits your ass and the back of your thighs with a slap time and time again.

"Ohh God Mira!" You squeal as the lube coating the dildo seeps into every crease of your pussy and heightens the feelings of every nerve. "Harder! Please fuck me harder."

Mira does her best to grant your wish and her hips slam forward hard and fast, shaking your body with each delightfully savage thrust. In only a few seconds you are crying out as the first waves of pleasure ripple through you from an orgasm. Mira does not slow her **** for a moment and hardly have the delicious tremors of your first climax began to recede when you crest once more and renew your cries.

"Oh fuck Sis, you came again already?" Mira gasps increduously, her face flushed and her breathing ragged. "I'm just reaching my....Oh fuck yes!"

You can feel you stepsister's body stiffen and then shake as she thrusts against you and her face glows as her own orgasm hits. The look of bliss on her face is enough to send you spiraling into yet another climax as despite her steady rhythem faltering Mira continues to pound your drenched pussy as hard as she can.

How long this continues you are unable to say. By the time Mira cries out in the midst of her second orgasm some time later you have lost track of the times you have climaxed. With a long sigh Mira slows and then ceases her thrusts and collapses beside you on the bed. You feel suddenly empty as the dildo slips out from your well used pussy, but the warm afterglow from Mira's beastfucking suffuses your whole body.