Glitched Isekai

As he disappeared into the Nexus again, Sam cast [Heal] on himself.

He realized that all the summoning have really left his whole body aching and sore all over. And although he hadn't really done any fighting, his body was very fatigued and needed rest. Even his balls felt overused and dry from so much cumming. 

The magic spell covered his body, making him feel wonderful and fully rested. In fact, he felt rejuvenated and virile again. 

"Phew! I don't think I could take another summoning if I didn't do that" he thought to himself. 

"Ok Nexus. I want to summon a demon banisher, a expert magician who's specialty is banishing demons" he ordered as he stripped and sat down onto the floor. 

"I fucking did this like less than an hour ago!" he mumbled to himself as his body stiffened up again. 

While he was immobilized, he looked through his peripheral vision at the other familiars still holding the demon in place. 

The demon was bound by Hermione's spell while the demon was bent backwards after it's knees buckled making it difficult to move.

At first Faith was pounding on it's face with Olaf's the Troll God's hammer, but the other familiars wanted to try. 

Not surprisingly the non-enhanced humans Mindy and Natasha had no chance of lifting the heavy hammer and couldn't even move it. Tauriel could only move it a little, but could not lift it.  

However, Alice and Selene were able to lift it with some effort and could smash the demon's head with it. However, they couldn't wield it as effortlessly as Buffy or Faith who seemed to make it look light as a feather.

"Does that mean that the slayers are stronger than Alice and Selene?" Sam thought to himself.

Either way, they took turns smashing the demon's face until one gets tired, then she would be replaced by another to use the hammer.

In the meantime, the new summoned familiar was already on the way. Her body was already waist level out of his body and turned around, showing her naked breasts and top half.

He recognized her immediately. Phoebe Halliwell from Charmed, and acted by Alyssa Milano. 

Although he was glad because he always had a crush on Alyssa Milano, but Phoebe Halliwell was a bit underpowered, wasn't she?

Nevertheless, he instantly set up the mind link with her, allowing her to understand how to extract herself from his body, as well as to bring her up to speed as to what's been happening. It also allowed her to instantly meet and communicate with the other familiars. 

She looked at him initially with confusion, but as the information settled in, she smirked and moved her body, maneuvering herself into position. 

Then with a jerk of her hips, they were both separated only to find him tightly held inside her. 

"Uh...you're big" she moaned as she slowly moved. Sam groaned as well, enjoying her tightness.

She bent down and kissed him, and they started fucking passionately.

On the outside, Merlin watched the girls take turns to hammer the demon's head while waiting around. 

"Excuse me miss Granger" Merlin started as he approached Hermione. 

"Just Hermione will do" she answered with a friendly smile.  

"Well pleasure to meet you Hermione. I am Merlin, Headmaster of the Academy of Aristal" he continued

"Pleasure to meet you too, headmaster" Hermione responded politely. 

"May I ask what is going on? Does Samsara have a plan?" Merlin asked

"He's summoning a mage who is and expert in banishing demons. However, the summoning process is.... uh.... a secret" she answered.

"Ah, I understand. Everyone has their secrets. As long as the demon can be restrained, then he can take as long as he likes" he answered.

Hermione nodded, but was a bit frustrated, as she was also witnessing the lovemaking through the mind link. The other girls were taking their sexual frustrations on the demon with the hammer, or by shooting bullets or arrows at the demon's eyes to blind it, but Hermione couldn't let of steam like them. 

Merlin himself was frustrated. Being the highest ranked mage in Aristonia, he was regarded as the most powerful protector of the nation. However, he was impotent against the demon. 

Merlin was actually quite powerful, even more so than Hermione. However, even his most destructive spells, powerful as they are, could not kill the demon as it regenerates nearly instantaneously.

He could conjure up a portal, but where will he send the demon to? Without proper coordinates, he will be sending the demon to someone else's location which will probably end in genocide. 

Right at that moment, Sam finally came inside Phoebe, grunting as he spurted inside her. She rested on his chest for a few minutes before kissing him again, then getting off his body. A loud plop could be heard as his semi erect cock exited her, followed by him being drenched with cum and bodily fluids flowing out of her body. 

[Create Water]

Sam conjured water and both of them cleaned each other up flirtatiously. "Hey, don't take so long!" came someone's voice on the mind link. 

Sam wasn't sure whose voice it was, but it seemed like it was all of them simultaneously. 

"You get dressed. I'll exit first" Phoebe said, exiting the Nexus. 

Merlin was shocked as a naked gorgeous female appeared out of nowhere, but in an instant, Hermione cast a spell clothing her with clothes similar to what Buffy and Faith were wearing, namely matching black lycra pants and a lycra tank top.  

She looked at the demon and frowned. "This is no simple demon" she said, thoughtfully thinking of a spell as Sam walked out of the Nexus. 

She tried and cast several banishment spells, all to no avail. It seemed she lacked power. 

Hermione tried to help with a few ideas for spell casting. However, it appeared that their magic was completely different and did not complement each other.

It was like they used mana from different worlds, so although ideas about spells worked, she could not boost Phoebe's spell power.

"No luck?" Sam asked Phoebe who looked frustrated.

"I'm afraid I will need the power of three for this. Are you able to summon my sisters?" Phoebe asked.

"I am not sure. I have no control over who I summon. I just give a description and someone is randomly summoned" Sam answered.

In his mind, Sam was worried on how many more summons he can summon. He was already down to level 12 at the moment. 

"Can you try? Otherwise, I don't know how we are going to banish this demon" she said.

"I guess I will try" Sam sighed as he disappeared into the Nexus.