Mari awoke from the nightmare panting and sweaty, but cold. So cold. She couldn't even remember what she'd been dreaming about, but it had been enough to send her heart racing and leave her wanting something.

She wanted to see her brother.

She wasn't sure why, maybe a lingering feeling from her nightmare, but she desperately wanted the comfort of her sibling, so before she could question it, she was sliding off her bed and towards the door.

She did her best to avoid the floorboards she knew were squeaky as she crept down the hall to her brother's room, and eased open his door. She peeked in and found him lying asleep on his bed, his blanket splayed around him. Mari instantly felt calmer upon seeing him and his adorable sleeping face.

She gently closed the door behind her and walked up to his bed. It was small compared to hers, but it would be big enough to hold them both. She gently pushed the blankets aside and climbed in next to him.

Normally such a thing might've been considered strange, but Sunny often came to her room whenever he had nightmares, so she was sure he would be okay with her doing the same.

She immediately felt his warmth as she slid into the bed next to him, and moved up right next to him until their bodies touched. She could feel his breath on her and she closed her eyes to settle down.

Then she felt something hard against her stomach.

Her eyes shot open and she looked down to where she'd felt whatever it was that touched her. Her eyes widened as she saw it.

A tent in his pants.

Her face heated up as she quickly rationalized it. He was likely having an…interesting dream, and it translated to his…

She gulped. She knew she could've ignored it, could've shifted her body differently, but…she didn't. It was that she was bothered or insulted; he was asleep, so it was out of his control. No, what was getting at her was…the size.

He was…big. More so than she would've expected. Much more so than the last time they'd bathed together years ago before Mari hit puberty.

She gulped as she stared at it, unsure why she couldn't get over how large it was, or why she felt a strange tingle down her body. It wasn't like it was something she hadn't seen before, she'd seen Hero's cock a few times before, but this felt…different. It felt like even seeing his tent was something she shouldn't be doing.

And yet…

Before she could stop herself, her hand slid over his boxers, and the boy grunted. She jumped at the sound but trembled as she felt his shorts. It was so…hard. Thick, too. It seemed bigger than Hero's, despite the man being several years older than her brother. She moved her hand up and down along the tent, feeling it almost pulse underneath her fingertips, even though he had two layers of clothes. Sunny continued to shift and moan but gave no indication of waking up.

Mari gulped again. She knew the thoughts she was currently having were dangerous, something she shouldn't even be considering. Yet before she could stop herself, she was reaching up and grabbing the waistband of his pants and boxers. She only had a moment of hesitation before she gently pulled them down. She was leaning in close enough that when his dick came out, it nearly smacked her in the face. She slid the pants and boxers down, and originally decided to just slide them down to his knees, but since if he woke up, this would be hard to explain regardless, she decided to take them off entirely. She then leaned back to examine it.

Her breath hitched as she took it in. If she felt like she wasn't supposed to be looking at his tent, she definitely wasn't supposed to be looking at this. It certainly was bigger than Hero's, but not as much as she thought. Mari, admittedly, hadn't seen many dicks in her life, so she wasn't actually sure what the usual size was, but even so, it WAS bigger than Hero's, and that was making her feel…

Her hand was back on it before she knew what she was doing. Her eyes widened at her actions as she ran her fingers up and down the shaft of her brother's cock, her cheeks flushing as she felt it pulse and throb in her hand.

Mari's hand moved faster and faster, sliding up and down on the hard organ. Sunny continued to shift and groan. Mari could feel a tingling across her own body, and a growing heat between her legs.

She knew this was wrong, for many reasons than just the obvious, but she couldn't stop. She felt the arousal growing across her body and it was quickly beginning to override her judgment as she felt the need for more. She shifted her body and climbed on top of him, her eyes never once leaving her brother's cock.

Half of her was screaming for her to stop, to put his clothes back on before he woke up, to forget she ever saw her brother's dick, and forget she ever got turned on by it, forget she ever touched it.

Instead, the other half won out and she leaned down and placed her mouth over his head.

She'd sucked Hero off a few times, but they'd never gone further than that. She knew how to relax herself a bit so as she moved further down, she was able to keep herself from gagging as her tongue slid across his shaft. Sunny still didn't wake, which surprised Mari. He must've been a sound sleeper if she could suck him off like this and he still didn't wake.

Soon enough, his entire length was inside her mouth as her mouth and tongue serviced it the same way she did to her boyfriend. She could see his body twitching, his toes curling, and his brow furrowing. His dick pulsed inside her mouth more and more, and he almost seemed ready to burst as precum dribbled down his shaft.

So she slid her mouth down to completely envelop it around his cock, and sent her tongue into overdrive. She slid it up and down, over and around, not letting a single inch of skin escape her barrage. Her saliva coated his dick as she had to hold back a moan from how it felt. Sunny's body lurched, and he let out a gasp as he came. His climax sent semen down her throat, causing her to gag for a bit before she recovered and allowed the cum to slide down, the taste bitter. She waited until he was done and his body settled back onto the bed before she pulled away and wiped her mouth, swallowing whatever was left in her mouth. She gave a satisfied sigh.

"I hope I gave you a good dream, Sunny~" Mari said as she gently put his clothes back on, a little bit of cum leaking from his dick still as she then leaned in and planted a gentle kiss on his cheek. She slid off the bed and quietly went back to her own room.

She doubted there would be any more nightmares tonight.