Author's Note: The heat is turning up with this one. I appreciate the comments and feedback. This is meant to be a short story/series and I will try my best to continue to bring the content daily.
Part 3
The game was over and Zack had won. Reaching third base was something he'd always dreamt of. Though he had always imagined it to be at a high-school party with some girl who was far too drunk to know any better.
Or perhaps it would have been with a steady girlfriend. Someone that he'd dated and could be seen in public with. Never in his wildest dreams would he ever have thought he would reach third base with Lily?
Her tits were that of a girl her age. They were full, perky and had much resistance to Earth's gravitational pull. Her pink nipples centred both her milk jugs and her small areola gave her a perfect nipple-to-breast ratio.
Her tanned skin made them look all the better. She looked like a women these days. Despite being generally thin and young-looking. His sister was perhaps the sexiest thing he'd ever laid his eyes on and here she was, preparing to touch his engorged cock.
Lily hadn't moved. She had lost the game and she was well aware that meant she had certainly lost the bet. She had to touch her brother's cock. It wasn't as though she had to, for some fucked up reason she wanted to.
Ever since she saw it the first time in Zack's bedroom she couldn't stop thinking about it. How big it was, the girth, the redness or the way it twitched as his eyes took in the sight of her teenage breasts. She enjoyed the way he looked at her.
It was intoxicating, all of it. He made her feel a way that nobody else had ever made her feel before. With his penis out and her tits free for his viewing pleasure, she felt more alive than ever before.
She knew now what she had to do. Her nerves were beginning to get the better of her. She'd never touched a penis before. Of course, she'd seen porn before and sometimes weird guys would send her unsolicited pics. But this was in the flesh. This was right before her very eyes and it belonged to her brother.
"I suppose I better come closer." Lily's voice sounded shaky.
Thinking that something was wrong Zack covered himself. "You don't have to. It was just a stupid bet."
She looked at him in the eyes for the first time since they'd started playing. "A bet is a bet."
Zack smiled. "If you say so."
He moved to the couch and seated himself on the edge. With his legs now spread, she got the best possible look at her brother's genitals. His legs were slightly hairy and his pubic hair was trimmed short above the base of his penis.
His cock stuck outward towards her twitching with excitement. It was almost as if it knew what was about to happen. His balls hung beneath the base, with one looking slightly larger than the other, or perhaps it simply drooped lower, she didn't know.
Lily moved towards him on all fours and Zack got a great view of her her tits as they hung beneath her body. Her erect nipples were pointed directly to the floor and he could see the outline of her thong near her ass as it showed near the hem of her pants.
She came closer and closer until she was knelt beneath him and between his legs. Zack gulped. It was a scene he'd witnessed many times on his phone screen. However, this was not porn. This was the real thing.
"I suppose I should go ahead and touch it?" She asked, looking up at him.
Zack could only nod. Lily sighed and took one deep, long breath. Zack felt her breath against his cock, making it twitch and bounce. He watched as she lifted her good arm from her side and extended it out towards him. Suddenly her hand closed around the length of him. Her fingers curled around it and she immediately took note of its strength.
"Fuck." She said, giggling a little.
"What's wrong?" Zack was barely able to breathe.
"It's so.... So hard..." Lily looked mesmerised.
She didn't move her hand much to begin with. It was clear that it was her first time holding a penis and she looked to be enjoying the feel of it so far.
"Does this feel good?" She asked.
"It will when you move it." He said, between laboured breaths.
With that, Lily tugged down on her brother's cock and watched as his sheath retracted, exposing his large and very ominous cock-head. She watched the skin pull away and expose more of his glads. It had a smell, just like hers. Not a bad smell, but a smell of sex.
It filled her nostrils, making her vagina leak even more than it already had. Zack watched his sister tug him and he gasped loudly as she did so. It felt a whole lot different with somebody else's hand around it.
Lily then allowed her hand to drag the skin upwards until her knuckles reached the tip. She did this over and over again, slowly jerking him off. Zack's hands gripped the edges of the couch and she was beginning to enjoy the way he would react to her touch. She felt powerful, as though she had him in the palm of her hand, that his pleasure was coming from her doing.
"I can't believe I'm doing this." She said, with a sexy smirk on her face.
"I can't believe it either!" He gasped.
Zack was in dreamland. Her sister was pleasuring him with a tight fist as she pumped her hand up and down his cock. He felt the friction begin to cause a tingling pleasure, the likes he'd never felt before.
"I won't last long..." He confessed.
"Where will you put it?" She asked, suddenly aware that she was in the firing line.
Zack could only grunt. She picked up her pace as she was well and truly jerking him off now. She enjoyed the way his balls jumped and jiggled as her fist pumped his meat over and over again. After wondering what his balls felt like, she decided to bring up her free hand.
Zack felt his sister's cold left hand make contact with the underside of his sack. His grip on the sofa tightened as she cupped his loose hanging testicles in one hand, while the other tugged on his member.
"Fuck, Lily..." Zack blurted out.
"Does it feel good?" She asked, looking up at him.
"Ama...amazing..."
His eyes were tightly shut and his mouth was gaping open. The feel of Zack's balls intrigued her and she decided to fondle them a little more as she worked away at his length. She allowed her fingers to feel at them both. First, she pinched them gently, before rolling them around between her fingers.
Zack twitched and bucked as his orgasm was coming to boil. He watched her thin fingers curl around his cock and pump him faster causing waves and waves of an unknown pleasure to curse its way through his loins. Her tits bounced as her wrist jerked away as best she could.
Lily was beginning to feel her hands tire. So that she could rest, she thought of something that could keep him stimulated. She pinched the base of his cock and let go of his balls in the meantime. He opened his eyes to see what she was doing and was delighted to see that she'd sat up a little.
Lily brought the end of Zack's penis towards her chest and slapped it against the softness of her tit. She did this again and again before rubbing the underside of his tip against her very sturdy nipple. She looked down and noticed that his precum was now lubricating most of her breast.
Zack cupped his mouth to surpass a genuine moan. Just as she clipped it against her nipple one last time, he came. Zack's legs shook and his hips bucked. He thrust himself upwards towards her. Cum suddenly erupted from the small hole at the tip of Zack's penis and it hit her below the jawline.
She immediately felt his warm goo dribble down her neck. The second spurt connected with her cheek and splashed upwards towards her ear. The third was less aggressive and landed between the valley of her bosoms. The fourth and fifth pooled over her breast, covering her nipple in his seed.
"That is hot." She said, loudly.
Zack could have entered another universe for all he knew. He felt her nipple against his cock and that was enough to do it. It was by far the best orgasm he'd ever experienced.
"That was...." He could barely speak.
Lily laughed at him. The sight of her covered in his sperm was something to behold.
"You covered me pretty well." She said, looking down at her now sticky tits.
"Whoops..." He said, softly.
Lily hadn't taken her eyes off of him. She enjoyed the way Zack's cock twitched post-orgasm and was intrigued with how it deflated afterwards. His cock was shrinking to a flaccid state and even then it looked large.
"Who knew you could be so... so hot." She giggled.
"Who knew you gave good handjobs." Zack smirked.
"Perhaps I have a gift." She smiled at him.
"You're welcome to use that gift anytime."
His words caught her attention.
Did he mean that? Did he really want her to do this again? Or more often for that matter? Was she willing to? Probably.
For a moment she allowed him to recover. He was panting a little. Even still as his cock had shrunk to normal size it pulsed sensitively between his legs.
"I can't believe I made you cum." She said, still in disbelief.
"I suppose I was returning the favour."
They both laughed. In the space of an hour, they'd played their long-loved board game and had both cum at the hands of each other.
Lily stood for the first time in a while and straightened out her legs. "I better go clean this up."
"I better get dressed," Zack shifted in his seat, "it's beginning to get cold in here again."
Lily retreated to the bathroom where she washed away her brother's sperm from her tits. She rubbed toilet paper at the smears on her cheek before flushing it away. As she looked at her half-naked body in the mirror, she noticed that she couldn't stop smiling.
Perhaps it was a blessing being left alone with Zack. She would never have been so comfortable doing that with somebody else. She supposed that if there ever was someone she was going to experiment with, it would be best for it to be with Zack. Even if he was her brother.
Her first sexual experience was something she'll never forget. How could she forget the way his cock looked. How her own brother's face screwed up as his orgasm took over him. She knew it to be wrong. Most people thought it be sick, perhaps they were right. Though she didn't care. As long as nobody found out, she was happy to enjoy these experiences with him.
And with everything going on in the world, she didn't want to pass up this experience, not whilst they were alone anyway. They may never get this situation again and she knew it. She wanted to make the most of their time alone.
She met him again in the Den and he was now fully clothed. Zack's eyes were on her exposed tits again and it made her feel out of place. Lily quickly pulled her t-shirt over her head to cover them.
