Anally

Sam didn’t have to think as he immediately said, “I want to fuck her ass.”

Your heart pounding in your chest, you look at Sam's eager face as he stares at your tits and your ass barely covered by the soaking wet yoga pants. You can feel your pussy getting more damp and your nipples stiffen. Zoe's words hang in the air from earlier like a dare, "I want to watch while he fucks you." The thought of your sister watching as Sam takes you, in the ass, sends a shiver down your spine.

Sam just growls in response, roughly grabbing you by the hips and pulling you towards him. He pushes you onto the bed, following you down. His lips find yours, and the last shred of doubt evaporates in the heat of his kiss.

Sam's lips were on yours, his tongue demanding entry almost immediately. His other hand groped your breast, squeezing and kneading it roughly as if testing its firmness. You arched your back, granting him better access to your neck, where he began sucking and nibbling. A shiver went down your spine at the sensation, pleasure and pain mingling together in a heady cocktail.

As you lost yourself in the moment, you felt Sam's fingers trail down your stomach, slipping under the hem of your yoga pants. They became slicker than the fabric they were made of as they slid towards your crotch. You let out a moan, arching your hips upwards to meet his fingers.

"Oh god," you whispered, "I want you so bad."

Sam growled in response, and before you knew it, he was tearing your pants off, exposing your soaking wet pussy to the cool air of Zoe's bedroom. You blushed, both from arousal and embarrassment, as you felt two sets of eyes on your most private parts.

"Damn," Zoe breathed, "I can see why you're so eager, Sam. Alana's dripping for you."

Her words emboldened Sam, who wasted no time in positioning himself at your entrance. He looked into your eyes, searching for any sign of doubt or hesitation, but all he found was raw, unadulterated lust. You nodded, slowly at first, then more confidently as you braced yourself for the feel of him inside you.

Sam quickly applied some lube and then pushed his throbbing cock past your anal sphincter all the way into your ass with one swift thrust.

The pain is unbearable at first and you almost black out. You hear screaming for a few moments before you realize its actually you screaming in pain. Zoe cuddles up next to you attempting to soothe you as Sam begins to pump his cock in and out of your rectum.

As the pain slowly subsided, you realize that Zoe was stroking your hair and Sam's hips were still moving in a more measured rhythm. His cock having been buried to the hilt inside your ass, stretching it in ways you never thought possible. Slowly, the pain was replaced by a dull ache, and you began to feel something else entirely.

"I-it... doesn't... hurt... anymore," you managed to gasp between shallow breaths, the words catching in your throat.

Zoe squeezed your hand reassuringly. "That's good, Alana. Just relax and let it happen. Trust me, it gets better."

And she was right. As Sam continued to pump in and out of your ass, you felt a strange, building sensation deep within you. It started as a tingling sensation, like ants crawling just below the surface of your skin, but it intensified, rapidly spiraling out of control. It wasn't long before you were moaning and writhing beneath Sam's strong, sure grip.

"That's it, baby," he growled in your ear, mistaking your cries of ecstasy for pain. "I'm almost there too. God, your ass feels so tight!"

With a final thrust, Sam stiffened, his entire length throbbing inside you as he released his load. Wave after wave of hot, thick cum flooded your ass, sending you over the edge as well. Your pussy clenched, sopping wet with desire, as you orgasmed harder than you ever thought possible.

As the haze of pleasure cleared, you lay there, panting and covered in a sheen of sweat. You could feel Sam's cock, still hard and pulsing inside you, as well as his labored breathing on your shoulder. Zoe, for her part, hadn't moved from her position on the bed, her eyes locked on the scene before her, a look of both fascination and envy on her face.

As Sam’s cock slowly softened inside of you he started to pull out as Zoe moved down to where the two of you were connected. As he pulled out, she eagerly took his cock in her mouth and cleaned it off expertly before turning her attention to your gaping bright red hole and began to lick up the leaking cum and other liquids.

Her tongue emerged like a pink snake, sliding over your tender, abused ring. You gasped, arching your back involuntarily, unsure if the sensation was pleasure or pain. It didn’t take long for you to realize it was intense pleasure as your body once again began to twitch involuntarily as another orgasm washed over you. Zoe looks up at you hungrily like she has something else in mind.