Claire opened the door to the cabin and entered, she felt like she was trespassing holly ground: it was the cabin of her parents. They were off board, visiting some boring ruins, so she and her brother had stayed on the ship. She wanted to explore the ship, and her brother was kissing with an English girl.

Her parent had taken the cruise for an anniversary celebration, so Claire knew what they should be doing every night, she just wanted some evidence. She closed the door and started going through the drawers, leaving everything exactly as it was before.

She found what she wanted in a bag under the bed. There were some condoms, some erotic toys and some intimate lingerie. Claire touched a satin underwear and shiver ran through her back, imaging herself on it. The clock said that her parent wouldn't be back for four hours. She smiled.

She removed her skirt and pull down her bathing suit, naked she walked to the bathroom and put on the lingerie. The mirror told her she looked real nice, she thought any guy would die to see her like that, maybe she would when she decided to sleep with one, it made her looked real sexy.

But it was too much. She removed the lingerie, went back to the bed and put them back in the bag. Then she noticed something new: a pair of handcuffs. «What would they do with these?» she wondered. Se put her wrist on the handcuff and closed it. They weren't fake, but real police handcuffs. «Where could the key be?».

She walked back to the bathroom, remembering seeing a small key there, she tripped with the edge and fell. She managed to hold, but in doing so she heard the handcuffs close again. She was trapped, handcuffed to the towel rail. She stood and searched the hole bathroom for the key, to no avail.

She tried to reached the bed, but from that position it was impossible. She then notice she was naked, she searched the bathroom again, but all she found was a small face towel, she took it and used it to cover her crotch. She would have to explain a lot when her parents arrived.

Nonetheless the door of the cabin opened much sooner, and as it was behind the bathroom, also closed this one. Claire was about to inform of her predicament, when she heard her brother's voice: -This is my parent's cabin, they won't be back till dinner. I share mine with my sister.-

Claire then heard a giggle. -And why did you brought me here?- asked an English accented girl.

-About the only place I could think we could be alone.- Answered Robert. Claire then remembered that on the bed were her clothes as well as his parent's toys, so she spoke.

-Robert!- she called him form the bathroom.

Only silence could be herd outside, until her brother spoke -Claire?-

-I think I better go.- said the English girl.

-No, but... - started Robert, but the door of the cabin was already close again. -What are you doing here?... - asked Robert, angry, opening the bathroom, and stopping at the sight of his sister. Naked, with only a small towel covering her privates and handcuffed to the towel rail. -What happened?-

Claire covered her breasts with her free hand. -Search the key of these, it should be on the bag in the bed, and bring me my clothes, won't you?- Robert didn't move, looking at his sister. -Hurry up!-

Robert went to the bed. -Who did this?- he asked while searching the bag. -or were you searching dad's things?-

Claire didn't answered. -Hurry, please.-

Robert appeared at the bathroom again, he didn't seemed worried anymore, now he looked angry. -You were messing with mom and dad's things! Do you know what you did to me?- Claire covered herself again, scared. -I was about to fuck that girl, now I'll be lucky if she ever speaks to me again.- Robert paused. -I should let you there for mom and dad.-

-No! Please help me.- begged Claire, feeling even more naked.

-Why not? So you stay out of trouble? What about me?- Rober stopped, then his face changed, his eyes started looking again at his sister's body. -I'll help you if you do.- he said at last.

Claire blushed, she knew what her brother meant, but she couldn't believe it. -How?-

-Let me see your breasts, sis.- ordered Robert.

-But I'm your sister.- complained Claire, hugging her breasts even harder.

-And responsible of me being still virgin.- answered Robert. -Do it, or I let you there.-

Claire swallowed, her brother's face was determined. She slowly removed her hand.

-You have beautiful breasts, sis.- smiled Robert.

-Now get the key.- asked Claire.

-Not till I have seen enough. Why don't you give that towel?-

Claire looked at him, but remained silent. She closed her thighs and removed the towel, exposing her pubic hair, but letting her pussy hidden between her legs. She knew it was all wrong, but having her brother look at her was exiting.

-You are beautiful sis.- said Robert, breathing heavily. Whit his hand he caressed her cheek. Claire was surprised, but the touch was so nice she closed her eyes and let him continue. Soon Robert's hand traveled down to her neck and breasts. Claire knew she ought to stop him, but it was so pleasant. -Let me see you sis.- Asked Robert, but now almost begging her. -I've never seen a girl before.-

Claire opened her eyes and relaxes her legs. She was very excited. Robert's hand caressed her nipple, and Claire almost let out a moan. Then Robert's hand traveled over her belly till it reached her thigh. There he tried to open her legs, but Claire reacted. -No! Robert, I'm your sister!-

Robert backed out. Anger returned to his face. -If you leave me like this.- he said, showing his crotch. -I leave you like that.-

Claire lowered her head and opened her legs. She heard a zipper, and saw Rober's cock in front of her. It was the first cock she had ever saw, and she felt both fear and curiosity.

Robert's hands went to her legs, helping her to show her pussy. Claire blushed, but didn't opposed him, she was excited and the wetness of her pussy showed it.

-It's amazing, - said Robert. -you're much prettier than any actress.- Claire knew he meant erotic actresses, but smiled at the compliment nonetheless.

Robert moved closer his hand, and his finger touched his sister's slit. Claire jumped at the contact, she had not expected it to be so exciting.

-Show me how to touch you sis, - said Robert, while his finger rubbed her slit up and down. Claire saw that Robert's other hand, meanwhile, was busy on his own cock.

-No, Robert, you're mi brother.- said Claire once more. She tried to stopped him form touching her, but he took her hand and made her touch herself. Claire couldn't avoid a moan, and kept masturbating even after Robert released her.

Claire could feel her orgasm was close and started rubbing her clit, but then Robert stopped her. He moved her hand from her pussy to his cock, and replaced her hand with his. Claire was close, and that only increased her excitement. She started caressing his cock while he rubbed her pussy, trying to simulate her.