Vic closed the gate that surrounded the swimming pool in their backyard
and turned. He froze upon seeing Angie, clan only in her miniscule
yellow-and-orange-pattered bikini floating on the inflatable lounge in
the middle of the water. He turned to go.

“Vic, don’t.”

He stopped, then faced her again.

She raised her head, lifting her mirrored sunglasses so he could see
her eyes. “We’ve been avoiding each other for nearly two months, since
that last time in your bedroom. We’re brother and sister. We live under
the same roof. We’ve got to stop doing that. We’ve got to figure
something out.”

Vic draped his towel over the back of a chaise lounge and stood staring
at her. “That’s easy. Promise me you’ll never make me do that again and
apologize for what you’ve already done. And, in time, things will
probably go back to normal.”

Angie sighed. “That’s just it. I don’t want normal. I like watching you
masturbate, Vic.”

He winced.

She shrugged. “Mom and Dad are on vacation, dummy. We’re the only ones
home. Remember? They left yesterday morning and they’re gone for three
weeks.”

Vic nodded. He knew. He was dreading it. Three entire weeks without
anyone in the house aside from himself and Angie. Who knew what she was
planning to put him through. He nodded again, then picked up his towel.

“Don’t go ,Vic. We need to talk.”

“Apparently, there’s nothing to talk about.”

“Yeah, little brother. There is.”

“What?”

“That night. That last time, you said you came looking at me and not
the magazine.”

He winced again, not comfortable discussing this at all and certainly
not outside where they might be overheard. Rather than verbalize a
reply, he merely nodded.

“Okay. And you’re right. That’s not normal.” She frowned. “At least I
don’t expect that it is.”

He waited, not saying anything.

“We’ll just have to deal with that, Vic. I like watching you get off
too much. I found that out that night I walked in on you.”

“That’s not normal, either, Angie! For a girl to want to watch her
brotherĀ  You know!”

She nodded. “Normal or not, that’s the way it is. Why don’t you hop in
the pool and go for a swim?”

“I think I’ll wait.”

“Until I’m out of the pool?”

“No offense, but, yeah.”

“I plan on staying out here all day. I brought plenty of sun block.”

Vic watched her slide her sunglasses into place and noticed for the
first time how her nearly-nude body shimmered with the oil that covered
it. The reflected sunlight made his sister glow. He shook his head and
turned to leave.

“Then masturbate for me, Vic.”

He spun back, horrified. “What? Here and now?”

“Yes, little brother. Here and now. While I’m floating out here and
you’re on the pool deck. You’re only wearing your trunks. Take them off
and masturbate for me.”

He folded his arms over his chest. “I can’t.”

“Then go grab some porn. But be quick about it. I want to watch you
again.”

“No.”

“I’ll tell Mom and Dad about your pornography collection if you don’t.
Soon as they get home, that’s the first thing they’ll hear. I’ll tell
them all about how I heard your moaning in your room one night while
they were gone and went to check on you, thinking you were ill, and
instead found you jerking off to a pile of smut.”

“You wouldn’t really.”

One perfect eyebrow arched slightly over the top of her sunglasses. It
was her only reply.

Vic sagged. “How much longer are you going to do this to me?”

“I’ve told you, little brother. This will go on for as long as I want
it to. And I think I’m addicted to watching you masturbate so expect it
to go on for a long time. Now get undressed and give me a show.”

Left with no choice, Vic yanked his swimming trunks off and flung them
into the chair with his towel. He started to sit when Angie stopped
him.

“No. Do it standing up this time. I haven’t seen you cum standing up
yet.”

Without saying a word, Vic took hold of his cock and lightly stroked
it, feeling it grow hard at his experienced touch.

Angie dipped her hands into the water of the pool and paddled closer.
“You’re just going to do it? No porn?”

“I just want this over with,” Vic shot back through gritted teeth as
she stroked his dick harder and faster, knees bent to help keep his
balance.

“Suit yourself. Just know that, with Mom and Dad gone for three weeks,
you’ll be doing this a lot.”

Glaring at her, Vic said, “I expected as much.” Falling silent, he
stroked faster and faster, trying to ignore the fact that the friction
on his dry cock was already uncomfortable.

He bucked his hips, trying to speed things along and bring himself to
climax in record time. But the only thing to look at, really, was Angie
as she drifted closer.

The sun still shone brightly on her oiled body. Her bikini just barely
covered her pert breasts and groin. Their father had allowed her to buy
it on the condition that it be worn solely in their own pool and never
in a public place. Even then he’d not been happy with it. But Vic,
though he’d never paid attention before, found himself admiring Angie’s
slim body and long, willowy legs.

Pre-cum oozed from the straining tip of Vic’s cock and he thankfully
caught it up, using it to lubricate his dick as he stroked even faster,
bucking his hips, trying to cum for his sister.

“Vic, you look so hot standing there like that,” Angie whispered. “Are
you about to cum?”

At her words, Vic felt his balls tighten. “Yes.”

“Say it louder for me, little brother. Tell me you’re about to cum.”

“I’m about to cum!”

“Tell me you’re going to cum for me.”

Before he could reply, Vic felt the mind-numbing sensation of his load
of fresh cum surging through his shaft. He groaned and the groan
quickly built to a bellow of animalistic lust.

Sperm jetted from the tip of his cock, arcing through the air and over
nearly two feet of pool water to spatter down on Angie’s lower leg. She
jumped as it landed on her, letting out a little shriek. Another blast
followed, splashing into the pool. Two more lesser shots rained down
upon the wood of the pool deck.

“It’s so hot!” Angie said. She was staring at the thick, white cum that
ran down her leg, just above her ankle, pooling on the transparent
blue-green of her raft.

Vic’s stomach clenched. He’d just cum on his own sister. Swallowing
hard, he turned and, not even picking up his towel or swim trunks,
bolted through the gate and back into the house. He raced naked up to
his room and slammed his door, locking it behind him.

Throwing himself on top of his bed, he buried his face in his pillow
and fought against the nausea that roiled in his guts.

“What the hell is she doing to me?” he whispered to no one. “She’s gone
way too far. I’ve got to find a way to stop her! I’ve got to!”