She was about to take action when she felt the pleasure increasing again. She definitely wasn't against one last good cunnilingus orgasm and waited until it took her, still as good as ever. After coming back to earth, she made her move. She pushed the boy away, whose face was erotically drenched in their juices. Alena protested against the sudden lack of fingers in her pussy and she had to voice her thoughts to make her cooperate.
"Let's move to sex. You're still a virgin, right? It's the opportunity for you to graduate."
"I'm not, okay? What about you, you never had a boyfriend before!"
"Tsk, I just don't talk about them. Don't put us on the same level."
"Yeah, right."
Her snickering little sister irked her very much but getting to the sex was more important for now. She could just punish her later. She removed her dress and bra and was now fully nude.
"You two remove your clothes too."
She felt good about being the one in charge since it was proof of her experience. Her sister and the guy - she still didn't know his name, by the way - followed her and undressed. She couldn't help but watch him remove his clothes. When he was topless, she admired his chest, much more toned than she expected from such a timid guy. Not that she minded, she liked men's chests no matter how they looked. The firm ones were good since they were so different from her own flabby and uninteresting mass of flesh. The ones with more flesh on them were also good since they seemed very fit to be caressed and played with. His nipples were also super sexy, small, and light-colored, making a clear contrast to the rest of his chest.
He then removed his pants and she got to see his underwear. He was wearing boxers and she randomly wondered if there was any way she could ask him for them at the end of their session. Freshly worn underwear from a young man, if she was careful, she could masturbate to them for a few months. The bump of his dick also became more clearly visible and the sheer view of it made her horny. What's more, he looked quite large.
This was confirmed when he removed his underpants. His raw cock towered over his pelvis, long and massive. She gulped at the sight, her pussy gushing juices in anticipation. Just like for chests, she liked any sort of penises. In her mind as someone without experience, the small ones were cute and probably easy to fellate, the fat ones surely perfect to grind against her pussy walls and the long ones obviously good to poke her cervix. They all had their good aspects but seeing the real thing was completely different from seeing it on the net. It felt so much more authentic, especially with the way it was pulsating excitedly. She also saw a tiny drop of precum on top of his glans, a clear sign that they had managed to arouse him a lot. She wondered how it would feel to fuck such a big penis for real and couldn't wait until they got to the action. She saw that Alena was also watching the boy, mesmerized by the view. At the same time, he was also scanning them, alternating between her and her sister. She wondered how she looked in his eyes. It was good that he had to listen to her since she wasn't so confident in her looks and body.
As the oldest here, she had to continue taking the initiative. She came close to the guy and caressed his dick as if she was very used to it. She couldn't help shivering a bit at the contact. Darn, it was hard and hot, so sensual.
"What's your name, boy?"
He trembled some when feeling her hand on his cock but still answered her.
"Benjamin."
"Benjamin, I hope you're ready for what's to come."
He nodded wordlessly before asking something.
"Are you both on the pill?"
"Don't worry, we are. Feel free to spurt inside of us when you can't hold it in anymore."
Now that everyone was ready, it was time for the main act. She took Alena's arm once again and guided her to the bed.
"Since we only have one dick, I thought of a way for all of us to enjoy ourselves at the same time. Get on all four on the bed."
Her sister slowly obeyed her, seemingly a bit discontent to have to follow her words but looking forward to it too much to refuse. She followed her and also got on all four, right next to her and in the same direction. Their bottoms were now aligned and facing Benjamin, who watched them with an intrigued look on his face. She had thought hard about how to do this and this was the best she managed to come up with. Truthfully, there were better positions, for example with her and Alena lying on top of each other and the boy simply having to aim up or down to fuck one or the other, but she didn't want to be in such close contact with another girl, much less her sister. In the end, this position would have to do.
"Now, Benjamin, go ahead and do us at the same time. You better work hard."
Alena turned her head around to look behind her and she, fortunately, didn't seem too adverse to the idea. It also wasn't how she envisioned to have her first time but getting to double-team a guy wasn't such a bad deal. How many women could say to have experienced this in their lives, after all?
The boy nodded again and hesitated for a moment, probably wondering who he should start with. She hoped he would choose her because her cunt was burning up and she could barely hold herself anymore. Unfortunately, he went to Alena instead and she turned her head to watch what he was doing. He put one hand on her ass and positioned himself so that his dick was right in front of her pussy. He used his other hand to guide his rod and when his glans was at her entrance, he slowly moved his hips forward, pushing himself inside her little sister.