Lindsey, Mike's step sister always had friends round. She was a popular, sexy 19 year old college chick who all the girls liked and all the guys had a thing for. Her dazzling smile, smooth perfect curves and stylish black hair all made her into an alluring goddess who looked and behaved way beyond her years. Her closest friend Jessica was equally gorgeous, golden blonde with a stunning body and a warm smile that could melt even the steeliest of people. She was also 19 and the two had been friends since early years of school.
Mike had first met Lindsey when he was aged 15, and she was 16. At the time he had been hooked by her figure and her obvious good looks but sworn to control himself around her. He tried to make it as normal as he could and to treat her as a sister with some success over the two years they had been related. It had not always been easy.
Now Mike was 18 and she was 19 the two were getting on well, and had grown used to the arrangement.
Particularly on days like this- the sun shining and ten or eleven hot, scantily clad college girls using the pool in the back yard, Lindsey among them and even with all the others to contend with, her and Jessica stuck out as being extra sexy, with an edge to their looks and manor. Mike did the sensible thing on days like these and kept out of the way as far as it was polite to do so.
Himself, he had always been a good student and reasonably popular in his year, with a few close friends and several others who knew and liked him. About six foot with short brown hair and in decent shape, he had done quite well with girls too, but his modest personality meant he was never a jock or one of the well known guys. To Lindsey's friends he was her shy cute younger brother. Jessica had always liked him and got on well with him, she loved the effect she had on him too, taking advantage of his reserved nature. She would casually flirt with him when she felt like teasing and having a bit of fun.
Over the last few months Mike had begun to struggle around her and today he was hoping to lie low and get away with avoiding her for today. Her teasing style had grown almost unbearable for him to the point where he began to long for her to do more than just flirt, yet at the same time he knew she was more or less out of his reach and that she only did it for his amusement. He had seen her with various guys, although she had a boyfriend, Mark, now and seemed more settled with him. That made him jealous. Once, he was coming down the stairs when everyone was over and the two were in the hallway, Mark had his back to the stairs but Jessica could see him.
She quickly pulled Mark into a steamy embrace, kissing and softly biting his neck and lips, her hands brazenly caressing his crotch. As she kissed her way down his neck she looked mischievously up at Mike and winked. He blushed and turned to leave, totally turned on and extremely jealous. They both knew who held the power.
Later that day she 'accidentally' brushed her bikini clad ass up against him as he left the toilet and then looked accusingly at him. Mike started to apologise on for her to laugh and give him a playful slap. Her gleeful, innocent nature made him feel guilty even if she was the one intentionally teasing him, each time he fell a bit more for her glamorous, sexy style.
Today, so far he had managed to sit it out in his room and play some grand theft auto. He would occasionally sneak a glance outside, trying to see Jessica or his stunning step sister- as time went on his self control around her was limited too, but he managed by way of a very clever, if painful tactic.
A few months ago, the two of them had been curled up on the sofa watching a film. Mike's cock eventually got hard as her scent and sheer sexiness overwhelmed his senses. She nearly saw it, Mike moved quickly to avert such a crisis. He somehow managed to get off the sofa and kindly offer her a drink, all without her seeing it. He had grabbed his dick from the inside of his pocket and pulled it to one side. He reckoned he had got away with it, but knew he couldn't run the risk again.
Later that night he ordered a chastity belt online. He would wear it when he thought there was a risk. It would be very painful of he did het hard, but crucially he would be avoiding a potential humiliation. He also held the key, so as soon as it was safe he could free himself easily. For a month now, he had used this tactic and it had worked. Not always easy, especially when Jessica decided to flirt or tease, and seeing his sister around the house would wear down his self control too. Both these factors would leave him in immense pain, but that was better than a huge hard on sticking out and leaving him humiliated. He knew that was what both would enjoy doing to him. While he got on with them, he felt that Jessica in particular had a certain glee in making him frustrated or embarrassed.
Today Jessica was in an energetic mood and came bounding in to the kitchen where Mike was getting a drink.
"Hey Mikey, hows it going?" She smiled playfully, her skimpy bikini leaving little to the imagination. His eyes wandered onto her firm toned body. She made eye contact with him and laughed at his discomfort at being caught. And although she didn't know it, the chastity was hurting him too.
"Ah, very well thanks, you want a drink?" He offered.
"Sure sweetie," she wandered over to him as he grabbed a beer out of the fridge for her.
"Thanks honey," she pulled him into a hug.
"Its been too long, and your growing into such as fine young man," she flirted, her perfect eyes gazing into him. She let her finger run down his arm and patted his backside. Mike grimaced as his chastity gripped.
"I'm quite impressed, your not a little dork anymore are you?" She grinned.
"Uh, guess not," he stuttered through the pain, trying to ignore her jibe. She ran her fingers up his arm, this time stopping to squeeze his bicep. Her hot, semi naked body just inches from his, her intoxicating scent, hair and eyes all seducing him.
"Hmm, tougher than before too," she commented as though he were an object for her to examine.
"And i'm sure your little weener has..." She ran her perfectly manicured nails over his crotch but stopped when they tapped a cage, instead of tease a cock.
"What the fuck is that?" She laughed, moving closer, loving his fear and obvious discomfort. She grabbed his caged cock. When she realised what it was she laughed again and an evil smile crept across her demure features.
"Oh Mike, you are fucked now!" She cackled and pulled him into a steamy kiss, running her hands down past his cock and pressing her boobs into him. It was a dream he never though would happen, and yet it was a nightmare; he was humiliated and painfully locked up. And now Jessica was going to take full advantage of him.
She pulled away laughing wickedly to herself, and then turning and grinding her firm ass onto his crotch, forcing him back against the fridge, trapping him into a sexy but cruel tease. Mike moaned with the pain and felt tears comes into his eyes. The whole situation what what he had always wanted and yet what he had always feared.
"How does that feel Mikey?" She crowed, loving his pain.
"Do you like my cute ass on your cock?" She giggled.
"Ah, its stunning but I need to get my cage off, its too painful!" He gave in.
At this she turned and gave him that playful slap that normally drove him crazy.