35

Mike's eyes were as wide as they could get as his eldest sister pressed his twin's leg nearly straight up. Emma had always been flexible, but this was ridiculous. Emma had one leg on the floor, her back on the wall and the one leg in Sarah's grasp was pushed nearly straight up resting against their eldest sister's shoulder.

Sarah was leaning in close, her mouth just inches from Emma's. "Other leg?" she asked, breaking Mike from his trance.

He swallowed and rewet his lips. His eyes grew wide again as Emma switched legs, bringing the other one up.

Mike couldn't help but look at his twin's crotch. He could see her underwear peek out from the side of her shorts. Tiny hairs were peeking out from the side and he could make out the lines of her pussy as the fabric pressed tightly against her.

"Get over there an fuck her now, now, now, now, now!"

Mike shook his head, drawing an amused smile from Emma. "Thanks," she said, lowering her leg off her sister's shoulder.

"You're welcome, sweetie," Sarah said, releasing her leg and lowering it to the ground.

Emma reached up and put both hands on the sides of her head, then pulled her sister close. "I mean it," she said. "Thank you so much." Sarah squealed in surprise as Emma reached up and put both hands on the sides of her head, then pulled Sarah close. "No, I mean it," she said. "Thank you so much." Sarah squealed in surprise as Emma pulled her face to her own and locked lips with her sister. She began to feel light headed as Mike's twin softly kissed her, running her tongue along her lips and gently pressed inside her mouth. Sarah opened her mouth and brought her hands up to Emma's face, pushing her own tongue inside and wriggling it around in her Emma's mouth.

"Damn it boy, go fuck'em both, NOW!"

Emma broke the kiss and looked over at Mike. He was drooling like an idiot. "Ready to go?" she asked simply. Without waiting for an answer, she turned and headed for the door. As Mike finally broke out of his trance and cast an incredulous look at Sarah, he stood and ran to catch up to the ass that was bouncing away from him down the street.

"Run faster you pussy!"

'It's not easy to run with a hard-on,' he thought at the voice, but ran on.

Back inside the house, Sarah had to sit down, wave the heat away from her face with her hand and catch her breath. She hadn't been expecting anything like that from Emma. It was certainly unexpected, but most definitely not unpleasant. Now she knew she'd really enjoy what she had in store for Mike later.

Emma didn't let Mike pass her, but she did let him catch up. She glanced back, smiling as his eyes darted upwards. Mike stumbled for a few feet, but regained his balance and trudged on behind her.

She slowed up and let him come up to run beside her. "That's enough of staring at my ass, for now," she said.

"I wasn't," he started, but stopped, realizing it was useless to continue the charade. "Alright, alright, so I was staring at your pretty ass," he admitted. "You've been flaunting it at me enough lately."

Emma grinned, "Can you blame me?"

Mike chuckled, "No, not really. Not with an ass like that."

They pounded down the street for a few blocks in silence before Emma spoke again.

"So did you like what I did for you on vacation?"

Mike looked at her like she'd asked him if he liked breathing. "What the hell do you think?"

Laughing loudly, she turned her head at him and smiled. "Well, if you're a good boy, maybe I'll let this insatiable alter-ego of mine take over more often." She winked and started to sprint.

"Damn it, feed me Mikey."

As they came back inside, breathing heavily, their three sisters were all at the breakfast table, enjoying fruit smoothies that Beth had just made.

Knowing full well what a minefield the kitchen table would be, Mike immediately went upstairs to shower.

Emma sat down after pouring herself a glass, smiling to herself and casting a glance at Sarah every so often.

A few hours later, Mike came downstairs. Beth was sitting in the living room watching something on the Discovery channel. He came in and sat next to her, putting his arm around her as she shifted and put her head on his shoulder.

"Where is everyone else?" he asked, looking around.

"Danni went over to Megan's house, and Emma and Sarah went to the mall for some clothes or something."

Mike rolled his eyes. His sisters had just come back from vacation where they had spent the better part of two days shopping, and they were out again. "Now, there's a surprise."

""So, Mike. Why is it do you think that our sisters are so interested in you, sexually?" Beth asked out of the blue, having no grasp of tact and being unable to ease her way into any topic.

"Uh..." Mike stammered.

"Abort abort, we've been compromised!"

"I mean, I've been contemplating this problem for the entire morning and I think I have a theory."

Mike still hadn't processed that Beth knew precisely what was going on, and his mind began to think a hundred different thoughts at once.

"First I established the facts," she continued, oblivious to the myriad of faces Mike was making at that moment, "that one, Danni, Emma, and Sarah have completely different body types, but are all attractive, and obviously so."

Mike shook his head and tried to focus, "Wait a second," he said finally, drawing a curious glance from Beth.

"I didn't think this part was confusing," she said, a perturbed look growing on her face.

"How did you find out?" he said, growing flustered himself.

"Ohhhhhh," she said. "I saw you and Emma on the island. Sarah saw you too, and by the way she was licking her lips and nearly drooling in the bushes we were hiding in, I just worked out that she was doing something similar with you. I also watched you and Danni having intercourse this morning. It was very... informative," she said, causing Mike to blush again.

"Now, back to what I was saying," she began again.

"Beth," Mike interrupted.

She sighed, obviously getting irritated with the constant interruptions.

"Why aren't you offended, or repulsed by all of this?" he asked at length.

Beth stopped tapping her fingers on her arm in frustration. She didn't really have an answer for that.

"Honestly, I don't know." she answered, but then proposed, "Curiosity, I guess? Maybe I will be to when I figure it all out." she shrugged. "Anyways," she continued, plunging her brain back into the theory she had worked out, "our sisters are all obviously attractive. If they were out seeking attention from other males, they wouldn't be hurting for options, so to speak."