Alex never learned from the schoolyard about sex, she was the one telling people about it. And to be the first in sex was a trend for Alex. She was the first to discover masturbating, the first to give a blow job and the first to lose her virginity, to her brother no less.

How did this happen? Well, it's a long story.

Alex walked into Justin's room and declared "I'm going to blow you!"

Justin had no idea what she meant at first. "What? You're going to what?" He asked confused.

"I'm going to blow you. You know, a blowjob? I'm going to suck your dick!" She declared loudly.

"No, you're not, and I'm telling mom you said that." Justin said.

"Uh, no, you're not telling her anything, because if you do, I'm going to tell her that you let me blow you." she said.

"But I didn't." Justin said. Which was a mistake, taunting Alex like that, even if he didn't mean to taunt her, she felt it was a taunt. Within a few seconds, Justin's pants were down. He tried to move backwards away from Alex to try and stop her from getting to his dick, but his falling pants tripped him and he ended up falling on his ass, and left him open for Alex.

So down Alex went to, except much more graciously and on her own terms, and she took Justin's cock into her mouth while he was struggling to get up. He was distracted at first, he stopped struggling when he felt the warm feeling around his cock. He watched Alex take it in and go up and down for a few seconds before his head on his shoulders took over again. He pushed her away, but was completely ignored. Alex sucking up and down. She was vacuumed sealed to Justin's cock. He tried pulling her upwards using her hair, but his hands were slapped away. Justin couldn't stand even the tiniest bit of pain. And he couldn't push her off, he wasn't strong enough to do it.

He gave up once he felt he was going to cum. It wasn't that long of a blow job, but that was expected for someone who had never gotten their cock sucked before, they weren't going to last long getting sucked off.

He didn't say anything, he didn't know he had to say anything. It surprised Alex when he started to cum inside her mouth. She didn't stop sucking though, or come off his cock, she wanted to know what cum tasted like, the internet wasn't very descriptive about what it tasted like and there were a lot of conflicting reports. As Justin's cum flooded her mouth, she was glad to have found out.

This went on for a while, every day Alex would suck Justin's cock, every day Justin would resist a little less, and it built up his stamina too, something he would silently thank Alex for in the future.

But eventually Alex would get bored of just sucking him off and then going to her room to masturbate. She wanted to feel the pleasure at the same time. So the natural thing to do was to fuck him. She'd surprise him with it.

She started it out like normal, taking his cock into her mouth and sucking on it. She made it an exceptionally sloppy blow job, she had read on the internet that she might need more lube for her first time but she wasn't sure how much, so she decided to be on the safe side and get it all wet. Her pussy was very wet too, she put her hand under her skirt and rubbed herself. She was more than ready to fuck him, to lose her virginity. She stopped sucking when Justin wasn't wasn't paying attention and she quickly mounted herself on Justin's cock, taking both of their virginities.

"Alex!" Justin yelled. Alex bounced up and down on Justin's cock, and only got harder as he tried to protest, and tried to push her off, but it was no use, he still wasn't stronger than her. He had to watch as he weakly struggled, he watched his sister ride his cock, and he felt a new warm and wet feeling on his cock, different from her mouth, much tighter and gripping his entire cock.

It didn't take long for him to cum, and he came inside of Alex. Alex felt the warm goo fill her up, and she came too. Alex learned that she liked getting cummed inside of, which might be a potential issue in the future for her.

"Oh no." Justin said.

"Oh no? Be glad you're not going to die a virgin!" Alex said. She laughed. As she walked away, cum ran down her legs.

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