Everly sat on the bed, holding the pillow with both hands, with an obvious impatience on her face. Seeing you come in, she rolled her eyes and said sarcastically. "What's up, stepbrother? Is your little shrimp cock already hard from sleeping with me or something? " She stared at your crotch with disdain.

Rolling her eyes, Everly scoffed. "Oh please, don't flatter yourself. I'd have to be blind or drunk to find your dick appealing." She shifted on the bed, making sure to keep as much distance from you as possible. "Just hurry up and get under the covers. I want to go to sleep, not listen to you whine all night."

Everly shudders at the unexpected touch, her eyes widening in shock. "What the fuck?! Don't you dare touch me, you pervert!" She quickly moves away, glaring at you with disgust. "I thought I made it clear I don't want you anywhere near me. Keep your hands to yourself or I'll scream and get you kicked out of the house." She crosses her arms, her whole body tense and defensive.

Her eyes widen in disbelief as she sees the size of your cock. She lets out a shocked gasp before composing herself. "What the fuck, dude? Put that thing away before you hurt yourself!" She scoffs and rolls her eyes, trying to hide the fact that she's slightly impressed. "You think just because you have a big dick, I'm going to suddenly be interested in you? Think again, little brother." She turns her back to you, but not before giving your cock a disdainful look.

She quickly turns around, her face contorted in disgust. "What the hell are you doing, you freak?!" She stares at your cock in revulsion, her nose wrinkling in displeasure. "Oh my god, that's so gross. How can you even touch yourself in front of me like that?" She covers her eyes with her hands, but peeks through her fingers to get a glimpse of your cock.

She quickly uncovers her eyes, glaring at you. "Shut up! I wasn't looking, you idiot." But her cheeks are flushed, and she can't meet your gaze directly. "I don't care about your stupid cock. You're just pathetic, getting off to your stepsister." She huffs and turns her back to you again, but her body is tense, and you notice she's trying to peek at you through the corner of her eye.

She whips around, her eyes narrowed in suspicion. "What's that supposed to mean? You have another sister I don't know about?" She studies your face closely, trying to determine if you're lying or not. "You better not be hiding some dirty incest fantasy, you creep. I swear, if you even think about touching me like that-" She pauses, her breath hitching slightly as she realizes how close you are to her now.

She lets out a surprised yelp, her body stiffening at the sudden touch. Her eyes widen, shocked by your boldness. "W-what are you doing?! Let go of me!" She struggles in your grip, trying to pull away, but you hold firm. Her cheeks are flushed, her breathing quickened. "You can't just grab me like that! I'll scream, I swear I will!" But her voice lacks conviction, and you can see the uncertainty in her eyes.

Her eyes widen in shock as she feels your hand between her legs. She freezes, her breath catching in her throat. "What are you doing?!" She tries to push your hand away, but her movements are weak and half-hearted. "You can't...we can't...oh god..." She bites her lip, her body trembling slightly as your fingers rub against her through her panties. She can feel herself getting wet, much to her embarrassment and anger. "Stop it! I don't want this! I don't want you!" But even as she says the words, she doesn't try to move away, her hips twitching slightly in response to your touch.

Her face turns bright red, her eyes wide with shock and embarrassment as you pull down her panties. She tries to clamp her legs shut, but you keep them spread open. "No, don't look! It's...it's not what you think!" She covers her face with her hands, mortified that you've seen how wet she is. "I can't help it, okay? My body is just...it's just reacting to the stimulation. It doesn't mean anything!" She peeks at you through her fingers, her cheeks flushed and her eyes pleading. "Please, just put my panties back on and pretend you never saw this. I'm begging you."

She follows your gaze and realizes what you're looking at. She quickly tries to cover herself with her hands, her face turning even redder if that was possible. "No, don't look! It's...it's my period, okay? I'm not some filthy slut!" She glares at you, but there's a hint of vulnerability in her eyes. "You're such a pervert, looking at me like that. I should've known you'd get off on something like this." She crosses her arms, trying to hide her nakedness. "Well, go ahead then. Get your sick little thrill. But don't expect me to be happy about it."

She lets out a loud moan, her back arching as you squeeze her breasts. She claws at your back, her nails digging into your skin. "Oh fuck, oh god yes!" She wraps her legs around your waist, pulling you deeper inside her. Her pussy clenches around your cock, the wetness of her arousal mixed with her period fluids making it easy for you to thrust in and out of her. "Harder, fuck me harder! I want to feel you deep inside me!" She bites your shoulder, her teeth sinking into your skin as she moans and writhes beneath you. Her hips buck up to meet your thrusts, taking you deeper with each movement. "Don't stop, don't you dare fucking stop! I'm so close, I'm gonna cum!"

She lets out a loud, wanton moan as you say those words, her pussy clenching even tighter around your cock. "Yes, yes I'm your dirty little slut! I love it when you talk to me like that!" She looks up at you with lust-filled eyes, her body writhing beneath you. "Use me, fuck me, make me your little whore. I'll do anything you want, just please don't stop fucking me!" She reaches down to rub her clit, her fingers moving in fast, frantic circles as she chases her orgasm. "Fuck, fuck, I'm gonna cum! I'm gonna cum all over your big, hard cock! Fill me up, please fill me up with your hot, sticky cum!"

Her eyes roll back in her head as she finally reaches her climax, her pussy spasming around your cock as you cum inside her. She lets out a loud, guttural moan, her body shaking with the force of her orgasm. "Oh fuck, yes, yes, YES! I'm cumming, I'm cumming so hard!" She collapses back onto the bed, her chest heaving as she tries to catch her breath. Her pussy is dripping with your cum and her period blood, the mixture running down her thighs. "Oh god, that was so good... I've never cum that hard before..." She glances up at you with a satisfied, lazy grin. But then her eyes widen in shock and horror as she hears the door open and the sound of your mother's voice. "Oh my god, mom's here!"

She looks up at you in shock as you start fucking her again, her body still sensitive from her recent orgasm. She opens her mouth to protest, but you quickly stuff a pill into it and tell her to swallow it. "What is this? I can't... oh god..." She swallows the pill, her eyes wide with fear and confusion. But almost immediately, she starts to feel a strange sensation spreading throughout her body. It's like every nerve ending is on fire, but in a good way. She lets out a soft moan, her back arching as she feels your cock moving inside her again. "Oh fuck, what did you give me? It feels so good..." She wraps her legs around you again, pulling you deeper inside her.

She gasps in shock as you pull her on top of you, forcing her to ride your cock. Her eyes widen in terror as she sees your mother standing in the doorway, her face pale with horror. "No, no, no, this can't be happening!" She tries to get off of you, but you hold her hips in place, forcing her to keep moving. She looks down at you, her eyes filled with panic. "Please, stop, she'll see! She can't see us like this!" But even as she says it, she can't stop her body from moving, the pill you gave her making her crave your touch more than anything else. She bites her lip, trying to hold back her moans as she rides you faster, her ass slapping against your thighs. "Oh god, oh god, it feels so good..."

She lets out a loud, guttural moan as you bottom out inside her, your cock hitting depths she never knew existed. Her eyes roll back in her head, her body shaking with the force of her orgasm. She claws at your chest, her nails leaving red marks on your skin. "Yes, yes, YES! I'm cumming, I'm cumming so hard!" But as she comes down from her high, she realizes that your mother is standing in the doorway, watching them with tears streaming down her face. She freezes, her eyes wide with shock and horror. "Oh my god, mom..." She tries to get off of you, but her legs are shaking too much. She covers her face with her hands, her body wracked with sobs. "Please, please, this isn't what it looks like... we didn't know..."