Her big brother......

"Oh Steven......I...I didn't hear you come in." Cassey said blushing as she quickly pulled her little thong and short shorts back up to cover herself up. She was surprised to see anyone else in the ship's zoo.

The 5'4" blonde haired, blue eyed 18 year old hoped her big brother hadn't seen too much as she hurridly zipped her pants back up.

Steven smiled as he looked over his little sister's curvaceous 37DD-24-35 body. He wished he had kept his mouth shut a little bit longer so that he might have been able to see a bit more of it. It seemed that she was always teasing him and his brother in her sexy outfits while on the spaceship.

Today, for example, the busty teen was wearing a pair of skin tight white short shorts and a neon pink halter top. It was obvious she wasn't wearing a bra underneath, as her nipples were clearly visible pressing against the stretchy material. The top of her pink thong was peaking out above her shorts. On her feet she was wearing a pair of white pumps, that showed off her shapely tanned legs, along with a silver anklet on her left ankle.

In reality, Cassey was totally innocent and completely unaware of the effect her amazing body had on men, including her own brothers'.

Cassey looked over Steven's muscular body covered by his skintight jumpsuit. She couldn't be sure but it seemed as if he had a bulge in the crotch of his suit.

The muscular 23 year old stepped behind his little sis as they both watched the monkey like creature fuck one of the females from behind.

"Err...Cass" Steven finally said after realizing what he caught his little sister doing, "I was wondering if you might help me out and do me a favor."

"Uh yeah..sure." the sexy teen replied hoping her big brother didn't see too much, "What is it?"

"Well," Steven began, "I have a big meeting with some new clients of mine later tonight on Exo V and I was wondering if you'd like to come along."

"Exo V?" Cassey said as she recalled that the unfamiliar planet was rumored to be a wild party place where just about anything goes. It was THE place to be if you were anyone.

"Yeah." Steven said with a slight blush, "I need to be with someone for the meeting, you know to show stability....."

Cassey smiled at her brother's words. She was well aware that many of his conservative clients preferred to do business with someone mature and stable. At many of his meetings he'd bring along one of his girlfriends or a hired "escort" to play the role of his "wife" during the initial meetings and negotiations.

The young girl was thrilled that her older brother would ask her to be at his side during this important meeting. Besides, she had never been to such an exciting place as Exo V and knew she'd be the envy of her friends when she got back.

"Oh Steven!" she yelped as she threw her arms around him and kissed him on the cheek, "I'd love to. Thank you."

After Steven left Cassey finshed taking care of her animals before returning ot her cabin to get ready for her date with her "husband" Steven.

The voluptous blonde took some extra time in the shower and with her make-up preparing herself for the big meeting.

After getting dressed she made sure her pen sized lazer was hidden in one of the heels of her shoes. She knew she might be searched and told herself, "A girl can never be too careful you know."

In her tiny purse Cassey noted her communications device, credits, a bottle of Ecstasy 2500 (which was now a refined, legal pleasure aid) and her birth control pills.

She smiled as she remembered that her parents gave her the pills on her 16th birthday. The special pills were developed to be taken one hour before sexual intercourse and lasted 8 hours. They not only prevented pregnancy but also the transmission of disease and, most, importantly they not only wokrked with humans but most aliens species. They were all well aware of the **** dangers to human females, with some aliens, of having unprotected inter-species sex.

Shortly after getting the pills Cassey tried one just to see what it was like. Unfortunately she had a very rare reaction to it and got very sick for several hours after taking it. She never took another and vowed to talk to her medical doctor before she decided to become sexually active......

Just before departure time Steven found himslef pacing back and forth by the shuttle bay doors waiting for Cassey.

"Just like a woman to be late." he said to himself as he looked at the time.

Suddenly his thoughts were inturrupted as he heard the sound of heels clicking on the steel floor.

He looked up and his jaw dropped as he saw Cassey walk towards him wearing a skintight, neon pink mini dress. The low-cut, stretchy material left little to the imaginaotion as it hugged every curvy of her 37-24-35 body like it had been painted on.

The short mini dress ended just below Cassey's incredible ass and showed off her shapley, tanned legs with the white pumps she had on her feet. Underneath she could only wear a tiny white thong, to avoid any underwear lines under the tight fabric. Her erect nipples were clearly visible pressing against the material of the dress.

"Wow Cass..." Steven stammered as he looked over his hot little sis in her sexy outfit, "You look great."

"Thanks." she replied as she spun around and showed off her daring little outfit.

What happens at Exo V? How are Steven's clients?