Claire noticed the change in Ben immediately when she walked in the door. She couldn’t believe how much he’d changed. Her step-brother was over six feet tall with a muscular body. He wasn’t an athlete in high school but began working out with buddies when they were getting picked on in school last year.
Ben also looked at Claire differently. He wasn’t sure if it was because he was older or the fact they hadn’t seen each other since winter break but his eyes scanned his step-sister’s body from her long blonde hair to her beautiful face and blue eyes to her full 36c breasts. She was wearing booty shorts that showed off her long, athletic legs and firm ass. He had to stop himself from thinking impure thoughts.
After all the hugs from their parents and Ben greeting Claire, he took her suitcases upstairs to her bedroom. As they were climbing the stairs, Claire’s ass was practically in Ben’s face. He couldn’t help but stare at how her ass twitched from side to side as she went up each step. Ben scolded himself for staring at her ass but the devilish side of him marveled at its perfection. Her ass was firm but still round enough to fill out a pair of shorts, her cheeks peeking out from the bottoms. He had to fight his desire to reach out and squeeze her ass but they finally reached the second floor and he placed her luggage on the bed.
They started talking as Claire unpacked her clothes and put them in her dresser. Ben watched his step-sister closely as they talked about his senior year, prom, upcoming graduation, and college plans. Ben was able to get a glimpse down Claire’s shirt at her hanging breasts when she leaned forward to get clothes out of her suitcases and checked out her ass again when she bent over to put them away.
Throughout that summer, Ben and Claire didn’t see a lot of each other between working and their social lives but they did have some days and evenings when it was just the two of them. Their parents took advantage of having older children and began to do things on their own like vacationing by themselves or simply socializing with their friends.
Claire always thought of Ben as her little brother and was casual about the way she dressed in front of him. It was common for her to walk around the house in the mornings or late at night in a sleep shirt or oversized t-shirt. Sometimes Ben would be able to see through the material and get a glimpse of his step-sister’s panties when the light was behind her. He always noticed the way her breasts bounced when not constrained by a bra and it was even better when he could see the outline of her nipples or the way they poked through the shirt when they were hard. Ben tried to make sure he was in the kitchen when Claire came down for breakfast because he would sometimes get a peek at her ass while she bent over in the refrigerator or when her shirt would lift when she reached for something on the top shelf of the cupboard.
After a few weeks, Claire began to realize her brother might be looking at her differently and she began to tease him on purpose. One morning after their parents had left for work, Ben let Claire shower first before they each went to work. He patiently waited in his room for her to finish. When Claire was done, she came into his room with a towel wrapped around herself to let him know he could now use the bathroom. Ben couldn’t help but think of Claire’s naked body under the towel. It barely covered her ass and pussy. He tried not to stare at her long legs and bare feet. He covered his crotch with his hands to hide his growing erection. It seemed like Claire was waiting for him to get up before she left but he didn’t want her to think he was a pervert for getting hard seeing her in just a towel. Claire just kept talking to him and even sat down on the foot of the bed. He kept trying to get a glimpse of her pussy but she had her hand covering herself.