Shelley Kept staring at them, especially at Jack for a few moments. Jack pulled out of Sierra and stepped away from her as Sierra took a step forward.

"Shelley..." Sierra said with concern.

"So this is what you two have been doing?" Shelley teasingly asked.

"Look, Shelley, let's keep this between us. Please." Sierra begged.

"Okay. I don't mind keeping a little secret, but I want something in exchange." Shelley said as she walked over to a bench and sat on it.

"What do you want?" Jack asked as he stepped forward.

Shelley looked at him and said,"You."

"What!?" Both Jack and Sierra shouted.

"You heard me right. I want Jack." Shelley told Sierra.

"Whoa, whoa, whoa, what do you mean by you want Jack?" Sierra asked, seething with slight anger and jealousy.

"Well, in short, I want to have sex with him." Shelley said.

"Shelley! You have a boyfriend!" Sierra said.

"Yeah. A boyfriend who is probably the biggest jerk in the world." Shelley said "That bastard never compliments me, ignores me. He even cheats on me and doesn't even try to hide it."

Sierra and Jack felt bad for Shelley as they heard all this.

"So now," Shelley continued, "I thought why not try something else. Now you two can either agree with my conditions, or I can tell your parents about this."

After a few moments of silence Sierra said,"Do it Jack."

"Wait, what?" Jack asked in shock as he looked at Sierra.

"Go and fuck her like you fucked me. If she wants it so badly I think she should have a chance." Sierra said.

"Wait, you're really gonna let it happen?" Shelley asked.

"Yeah. " Sierra said with a smirk.

Jack was a bit uncomfortable. He wasn't sure about what to do. His crush, now girlfriend, was asking him to go and fuck her bestfriend and that too right in front of her. But at the end he agreed with Sierra and walked over to Shelley. Shelley licked her lips as she stared at Jack's dick. She had sex with her boyfriend, Brian before but Jack is way bigger than him. She always had a small crush on Jack and thinking of having sex with him made her wet. Jack stopped in front of her and kissed her. Shelley kissed him back and wrapped one of her arms around his neck while she tried to remove Jack's T-shirt with her other hand. Jack pulled away from her and helped her remove the piece of clothing from his body. Both Shelley and Sierra gasped as they saw Jack's muscular body.

"Whoa, do you go to the gym or something?" Shelley asked.

"Well no, but technically yes. I have a gym in the basement of my house. I work out there." Jack told her.

"Wow." Shelley said in amazement as she touched Jack's chest.

"Are we gonna get busy or are we gonna talk?" Jack said.

"What's the hurry Jack? It's not like you're missing an appointment." Shelley said.

She then began putting off her clothes until she was just in her undergarments. Jack had to admit, Shelley's physique is nowhere less impressive than Sierras'. She then laid down on the bench and spread her legs as she gestured for Jack to come at her. Jack sat between her legs and put off her panties and stared at her wet pussy. Jack then grabbed her shoulders and plunged his dick in her pussy. Shelley let out a loud moan at that.

"You aren't a virgin, are you?" Jack asked.

"No. Now would you please start fucking me!?" Shelley impatiently said.

Jack began thrusting inside her as the golden haired teen moaned in pleasure. This encouraged Jack and soon he began thrusting inside her harder and faster. Sierra bit her bottom lip as she fingered herself, while she watched her boyfriend having sex with her bestfriend. Jack grunted as Shelley's pussy tightened around him as she came. Jack put her left leg on his shoulder as he started fucking her again. Shelley was completely left at Jack's mercy as Jack made her orgasm over and over again.

"I am gonna cum!" Jack announced.

"D-do it in-inside. I-I will haveeee a morning-after laterrrr." Shelley said between her moans as she came again.

Jack thrusted inside her harder and faster. After a few more thrusts, Jack buried himself deep in her snatch as he came. Shelley was surprised with how much Jack came as she felt herself being filled up. They were doing this for almost half an hour and she was really exhausted at this point. But Jack wasn't done with her yet. Shelley hardly managed to catch her breath when Jack Jack flipped her over and pushed his dick inside her ass hole. Shelley moaned in pain and pleasure at that. Jack began roughly fucking her ass. Jack groped Shelley's left breast with his left hand while keeping a firm grip on her hips with the other one. Jack pulled her up and made her sit on his lap as he thrusted upwards, inside her ass.

"J-J-Jaaaaaaaaccckkk!" Shelley moaned as she came.

Jack smirked as he heard her moan like crazy. This was by far one of the best days in his life. Suddenly Sierra walked over to them and sat in front of Jack and kissed Shelley on the lips. Sierra pulled away with a seductive smirk plastered on her face as Shelley looked at her with dazed eyes.

"Can't let you have all the fun now. Can I?" Shelley said and kissed Shelley again as she touched her best friend's body.

Shelley was overwhelmed. She came to the locker room to get some stuff she had forgotten there. But she found her best friend fucking with probably the nicest boy in the whole school. Then had sex with the said boy for almost half an hour straight. And now she was getting her ass fucked while Sierra was making out with her. Shelley moaned louder and gasped as she felt Sierra's fingers breaching inside her pussy.

"You like that don't you?" Sierra asked as she fingered her best friend.

"Yes." Shelley mewed.

"Say it louder whore." Sierra commanded.

"Yes! I like it!" Shelley yelled out as she had another orgasm thanks to both Jack and Shelley.

Sierra leaned down and began eating out Shelley's pussy as the blond haired teen moaned loudly because of the assault in both of her holes. Soon she came again and Sierra lapped up her juices.

"You don't taste bad." Sierra complimented as she kissed Shelley.

This went on for what felt like hours. Shelley was a moaning mess as she was orgasming over and over again due to having Jack's dick inside her ass and Sierra's tongue in her pussy. After a while Jack finally came and laid down on the bench with Shelley on top of him. Sierra also crawled up on top of them.

"I am definitely gonna hang out with you guys more often now. Maybe I will borrow Jack a few times." Shelley said.

"I don't think Jack would mind that. Looks like he enjoyed it too." Sierra said with a chuckle.

Jack just chuckled and shook his head and then said,"We better clean up and get out of here girls. We are already past our curfew."

As much as they didn't want the moment to end, they had to agree to Jack. They soon cleaned themselves in the shower in the shower and left the school as soon as possible without getting noticed by anybody. Jack might have had to endure a lecture from his mom for not being home on time but he surely was extremely happy with his relationship with the girls.

(Next is the Part 2 of this chapter. Yes guys this chapter ain't over yet. See you soon in the next chapter)