Chapter 3

That Saturday, Emma’s heart raced as she felt Nathan’s lips kiss along her neck. They had gone out to see a movie, but now they were parked in Nathan’s worn out Honda Civic in a secluded spot. Emma had been looking forward to their date. She felt like she needed Nathan to remind her of her true feelings and to forget about her sexual attraction to her brother.

They continued to make out, kissing each other, as Nathan started to undo the buttons of her blouse. As always Emma loved Nathan’s hands on her breasts. If she knew she had great boobs, it was partly thanks to Nathan’s constant reminders. When he unsnapped her bra, Nathan took his time to admire the swell of her breasts, before cupping them gently in his hands and gently kneading them. When he finally lowered his head to take one of her nipples into his mouth, Emma couldn’t help but let out a soft sigh of pleasure. She grabbed his polo shirt and pulled it over his head. As Nathan resumed kissing, licking and sucking her nipples, she let her hands roam over his chest. She loved the way it showed off how nice his body was built. Emma’s hands moved lower, exploring the defined muscles in his abs, and then tracing a path down towards his waistband. She couldn’t resist to gently massage the bulge that had grown in his pants. Nathan was hard and ready for her, and Emma couldn’t wait to feel him inside her. She opened his zipper and fished out his 5 inch dick. Four months ago, it was the first one she had ever seen, and she had always been perfectly happy with it. Now, as she took hold of it and stroked it, she couldn’t help but compare it to Noah’s. Though she could feel its hardness much more directly, Emma had to admit that Nathan’s cock was a far cry from her brother’s behemoth, both in the way it looked as how it felt in her hand.

These thoughts needed to be banished quickly. Emma loved Nathan and she was determined to keep being sexually satisfied by him. So what if his dick was so much smaller? Everyone always says it’s about the way you use it, right? Since Nathan had always managed to let her enjoy having sex, Emma decided she just needed to move on to the main course. She pushed Nathan off of her and pulled her panties down from under her skirt. Nathan watched in wonder as his girlfriend climbed on top of him.

“Someone’s excited,” he observed with a smirk. Emma had always been a willing participant in their sexual escapades, but this time she was unusually aggressive about it.

As Emma took hold of his dick and guided it into her pussy, her reply was nothing more than a quick “just shut up and enjoy it”. Lowering herself onto his shaft, Emma concentrated on how nice he felt inside her. She began moving up and down on his lap, riding him with a deliberate, methodical rhythm. Nathan moaned as her pussy gripped his cock, her muscles contracting with every downward motion as she took him completely inside of her.

Emma kept her mind on the dick that was bringing her pleasure, right here, right now. She loved the sensation of his dick in her, the way it made her feel full. She knew that she did. But this time, it was different. Emma tried her best to focus on Nathan. He was her boyfriend after all, the one she loved, the one she wanted to be with. She stopped bouncing up and down as much and started gyrating her hips on his cock. The added stimulation of her clit would surely do the trick. She grabbed Nathan’s hands and put them on her breasts, urging him to squeeze them and pinch her nipples. But no matter how nice it felt, she was sure she wasn’t getting any closer to an actual orgasm.

The problem was obvious. She was way too focused on concentrating on her boyfriend and the feeling of his dick inside her, to forget about her brother’s giant cock. This realization allowed Noah’s cock to penetrate her mind again. Emma thought back to the day before, how his huge, throbbing cock felt in her hands, and it made her wonder how it would feel inside her.

The image of her brother’s cock in her pussy, completely stretching her out, did it. Without any warning, her orgasm washed over her. Emma let out a loud, guttural moan as her pussy clenched around Nathan’s dick. Seeing his girlfriend climax on his dick, sent Nathan over the edge as well. He had been on the brink, holding back for as long as he could, hoping to get her to cum as well. Now, he groaned loudly as he came inside her.

Emma could feel the tension in his body, the way his muscles quivered, the rush of his warm cum coating her insides. And she was ashamed that she was wondering how it would feel to have Noah’s cock shooting its big load inside her.

All Sunday Emma was on edge. She knew now what she wanted, what she needed, but with their parents’ home the whole day, she didn’t dare risk it. During dinner, she put her hand on Noah’s upper leg and kept it there for most of the meal. Noah was shocked at her bold move, but he couldn’t argue with the erection he had for the remainder of dinner.

Monday was even worse. She might as well have ditched school, as later she would have no idea what any of her classes that day had been about. Not a single word stayed in her brain. The difference with last week was that Emma had resigned herself to her desires. She didn’t try to convince herself that she could simply move on, no more futile attempts at ignoring her obsession with her brother’s cock.

Emma knew that on Mondays Noah was usually home earlier than she was. So, she didn’t waste any time. As soon as she got home, she made her way straight to Noah’s bedroom. She didn’t allow herself to hesitate anymore and without even knocking, she entered his room. Noah had just began changing out of his school clothes and was standing at his desk, his toned torso bare.

“Wha...? Emma, could you please kno...”

Noah couldn’t finish his sentence, as she had marched over and with both hands she lowered his face to kiss him. It was a forceful, hungry kiss. Despite her actions during dinner the day before, he still hadn’t expected this. No complaints though. When the shock of the kiss was gone, Noah eagerly embraced her as she flicked her tongue across his lips. When he opened his mouth, she accepted the invitation and their tongues circled and teased each other. Her hands were now exploring his chest in a tactile admiration of his physique. Noah’s hands roamed freely over Emma’s back and butt, pressing her into him, allowing her to feel the effect she had on him. Her own arousal was increasing, as she ground herself against his growing bulge.

Noah broke the kiss and reached for the hem of her top, lifting it up and over her head. Emma raised her arms, allowing him to remove it. As they resumed their kiss, Noah shortly cupped her breasts in his hands, before reaching behind her back to unfasten her bra. Holding her close to him, her naked tits for the first time pressed against his chest, he reached lower once more. With one hand on her back and one on her butt, the two grinded into one another.