"I'm going to get a shower," Amy announced as she began to remove her top. Emily froze, watching as her sister's generous breasts fell into view. She couldn't take her eyes off them. Emily knew she shouldn't be looking, she shouldn't be wondering what they'd feel like in her hands or how it'd feel to run her tongue over her perky nipples.
Amy was two years older than Emily and Emily had always looked up to her. At some point though it had become more than that. Emily had realised pretty early on she was gay. Men just didn't do it for her and women were such beautiful, sexy creatures. What she had never expected though was to develop a crush on her own sister. The first time her sister's image had entered her head while she was masturbating, Emily had felt incredibly guilty, but as it happened more and more, the guilt faded and was replaced by arousal at how taboo it was.
Now Amy had invited her on holiday. Emily had jumped at the chance. She'd long resigned herself to knowing that nothing would ever happen between her and her sister, but she still enjoyed hanging out with her and if she got to spend a week by a pool looking at Amy in a bikini, well that was just a bonus. Plus, she'd spent three years working without a real holiday since she'd left college, she needed a break.
"Emily?" Amy asked and Emily snapped out of her staring.
"Huh? What?"
"I asked if you were going to get one after me?"
"Oh right, yeah sure."
Emily watched Amy disappear into the bathroom and sighed. She'd worried her sister might have been concerned that Emily had been staring at her breasts, but it seemed she didn't even notice. She guessed it wasn't exactly on Amy's list of things to have to worry about, being lusted after by her own sister.
Emily rubbed her face, she had to be more careful, god knows what Amy would say if she found out how Emily felt about her. She'd definitely freak out, maybe even disown Emily as a sister. Emily didn't want that to happen and swore to herself to be more careful.
Amy returned wearing nothing but a towel as Emily went to the bathroom. She stepped into the shower and tried to put her sister out of her mind. That was easier said than done and before Emily realised it, she was masturbating in the shower, picturing her sister naked as she got changed in the other room. Emily couldn't believe she was doing it, it was so wrong, especially when Amy was right on the other side of the door, but that just turned Emily on more. She bit her lip as she suppressed a moan, her orgasm rolling through her.
The orgasm seemed to abate her lust, making it easier to put her lewd thoughts of her sister to one side. Still though, Emily couldn't help staring at Amy's shapely legs as she walked ahead of her. She was wearing a black dress that went down to her thigh and clung to her round ass tightly. They went for dinner and had a couple of drinks at the bar, taking the time to catch up after months of not seeing each other, before returning to the room.
"It's hot in here, you don't mind if I sleep like this do you?" Amy asked, stripping off her dress and standing there in just her panties. Emily's jaw almost hit the floor as she struggled to act normally.
"No no, it's fine," she replied.
"Good," Amy smiled, getting into bed. Emily crawled into the opposite side. They'd opted to share a room to save money and Amy had pointed out that they were sisters, so it wasn't exactly strange for them to share a bed. Emily had put up no argument to that one.
