More sexual tension built up between them the next day. She had woken up feeling very horny. She lay in bed, stroking her cunt through her wet panties until she slipped her hand under the elastic and found her throbbing clit. She rubbed her clit for only a minute before she came, a long intense orgasm that made her buck her hips several times, as though she was fucking, thrusting out to grasp a thick cock into her slippery hole. At breakfast her sexual energy reemerged as she sat next to Tom, who squirmed in her presence. No doubt he had jerked off thinking about her, as she had rubbed her cunt thinking of him that morning. Maybe he had jerked off this morning as well, she thought. He was in very good shape, muscular without being muscle-bound, the product, according to Karen, of working out for the football team that summer. Definitely a body she wanted to get to know better.
The question remained, though, how big his cock was, something she was determined to find out. From her glance in the car she thought it was big, certainly big enough for her to fit into her tight cunt. When Tom got up hurriedly from the table and walked away she got another look at his bulge, his morning wood noticeably swollen. Karen had to run some errands with her Mom prior to her parents going on a short trip, so Amber followed behind Tom to see what he was up to. She paused outside the closed door of his room and put her ear to the door. She could hear little other than a slight rustling. Maybe he was jerking off, maybe not. Amber walked away to her room, to catch up on email and texts, disappointed that she didn't get to hear him jerk off while he thought about her sexy body.
***
Indeed, Tom had become very aroused at the breakfast table, sandwiched between Karen and Amber, who was wearing short gym shorts and a tank top, her breasts and nipples visible through the thin cotton fabric. He had become fixated on her tits, wondering what they looked like and felt like, and especially how they would feel when he slid his cock between them. Although he had some sexual experience, mainly a few blowjobs from one cheerleader in particular, he hadn't fucked a girl let alone tit-fucked one; it had taken him awhile to get in the swing of his new school, starting there as a senior with no friends after his father moved in with Karen's mother.
After he left the table, trying to cover up his hard-on, he retreated to his room and began stroking his hard cock, imagining Amber taking it in her mouth, getting it lubricated, and then positioning it between her tits. He imagined alternating between fucking her tits and sliding his cock into her welcoming mouth. Mouth then tits, tits then mouth, until his come shot into the sink. In his fantasy, his cum coated her tits, and then she put his still spurting cock back into her mouth to finish him. He wondered if she was interested in him, hoping to see his fantasy become real. And he wondered how Karen would respond if he fucked her best friend, something he was willing to find out.
***
Karen rode with her mom to get provisions for the week her parents would be away, her thoughts focused on what was going on with Amber and Tom. He had seen Tom looking at Amber at the pool last night, and then again at breakfast. He was just another horny teenager, so it wasn't surprising he'd be attracted to Amber. Amber was hot, especially in her skimpy bathing suit that showed a lot of flesh. Her own suit was like that. In fact, Karen thought she saw Amber checking her out at the pool and remembered the feeling of her breasts mashed against hers at the train station. She knew Amber was feeling the need to get laid after she broke up with her boyfriend at the end of the school year. She said he never reciprocated with oral sex and it bugged her. He'd always want a blowjob but would never go down on her and "eat my cunt," as Amber put it to her at the pool. Her boyfriend had broken up with her because she didn't like giving blowjobs.
So both of them were single for the summer and it was definitely beginning to affect Amber, judging from how she was looking at Tom as a potential fuck. She wasn't sure how she felt about that. She didn't think she cared, but it was weird. Tom had really gotten stronger by training for the football team and was definitely an attractive guy. So she got it. She just didn't want to be left out of it all if they hooked up. She imagined the three of them at the pool and Tom and Amber saying they were going to go to bed, leaving Karen alone at the pool. And then if she went inside and stood by Tom's door or Amber's door she'd hear them having sex. She could just hear Amber tell Tom to "eat my cunt" while she stood outside, feeling horny herself.
She felt her pussy throb as the scenario took shape in her mind, until her mother interrupted her by asking if she would be ok spending a week alone with Tom and Amber when she goes on her trip. Karen replied that everything would be fine, that they'll stay busy, and that she had some babysitting jobs lined up for that week. But she didn't know how the week would play out with the three of them. She found her herself surprisingly turned on by Amber and her dirty talk and about the prospects of listening to her and Tom fuck. She hadn't been laid in a month and she was beginning to feel very horny, especially given the heat of the summer and the near naked bodies at the pool. She just didn't know what she would do that coming week.
