She can't change their minds

"Harry, Ron, please! Think of all the hot girls that’ll be there! You really want to waste your loads on boring old me, who you've fucked hundreds of times, instead of some hot Beauxbatons girls?", Hermione pleaded. She didn't want to have sex on the forest floor, trapped on a root. She looked up hopefully toward Harry. What she received was a big smack on her ass.

"Let me tell you a secret, Hermione. Ron and I found a spell that refills our cum. If we wanted to we could fuck every woman in this school non-stop. We just felt like doing a test trial now, before the party. We are going to fuck you, cast the spell and then fuck you again. That way we can know if it works, and if it does, we can fuck ALL the girls in the party", explained Harry as he and Ron took off their pants. Hermione looked at them, eyes wide and speechless.

"I never thought I'd see the day we got Hermione speechless, Harry. Let's celebrate!", says Ron as he finishes taking off his pants. Before anything else, Ron pushes his erection into Hermione's ass while Harry uses her shock to start fucking her mouth.

Hermione's shock wore off as she was fucked. Her body was pushed as the two boys fucked her in sync. The only thing running in her mind is annoyance at being fucked, but she is unable to deny she knows this is right, and the tingling of pleasure that slowly grows inside of her. She began to moan, massaging Harry's dick as she did so. Ron was also enjoying himself, pushing into her ass.

Deciding it would be best if she was done quickly so she could make it to the party, Hermione began to massage Harry's dick. It took some time, but finally the boys both came inside her, filling her with cum. After this, both boys pulled out of her. Hermione felt exhausted, especially because of her uncomfortable position. However, the boys had no intention to let her go yet.

Taking out their wands, the boys pointed at their dicks and muttered some words. To Hermione's amazement, their limp dick were instantly fully erect. They moved back over smiling.

"Well, it works. Imagine all the fun we'll have, Hermione", they tell her while taking positions opposite to previously. Hermione suddenly worries. These two boys have **** resistance and were very horny. With this spell, she couldn't imagine anything stopping them from fucking her all night long if they felt like it.

Before she could worry any further, the two boy began fucking her again. Ron took her mouth while Harry fucked her in the pussy. She felt **** pleasure as Harry's large dick penetrated her, moaning into Ron's dick. They fucked her faster this time, causing some discomfort. They clearly wanted to get to the party fast, most likely to get started on the fuck marathon they planned.

They didn't hold back this time and came quickly, filling her once again. After they pulled out, they put their pants on again. They then helped her get free from the root, but not before smacking her ass one last time and giving her breasts a squeeze. She was annoyed about what happened, but knew there was nothing she could do, and headed to the party with the boys.