As soon as Vivian and Hilda came close to Rinne and Azusa, two of the boys who were free for the time being came to them and demanded kissing. Two other guys who came with Hilda and Vivian also joined in the kissing.
At that time Rinne and Azusa were getting nailed in the doggy style position while kissing each other. When they finally climaxed they stood up and went to Vivian and Hilda to join them.
-----
First it was Vivian and Azusa who started to ride two boys in the cowgirl position. Hilda sat on Azusa's partner's face and Rinne sat on Vivian's partner's face to join them and to get their pussy licked.
The remaining four boys each went to one of the girls to get a blowjob. When each girl got a load in their mouth, all four of them shared the load with each other like the good little slut that they were. Their teamwork was praiseworthy.
Then the boys who were getting fucked in the cowgirl position also shot their loads inside Vivian and Azusa. Hilda went ahead and cleaned up Azusa's pussy with her tongue and then shared the load with her.
Rinne did the same with Vivian but she was a lot more enthusiastic. Two boys asked for handjobs from Rinne and Vivian while they were kissing and although Vivian coincided and started giving the handjob, Rinne declined as she wanted to touch Vivian more for the time being.
Getting rejected the boy became angry and shouted -
"Bitch, you were supposed to do anything we tell you to do for today. How dare you reject me."
Then he took out the same needle-like magic item that was used in Vivian and injected something in Rinne's butt. Seeing this three other boys also took out the same magic item and injected all the girls. Then they started to speak among themselves -
"Oops, we were lucky to find four of these in the dungeon or one of the girls would have been left out."
"Hehe, we did a good job of hiding this from the girls. Now we can make them our slaves for the day. I really want to humiliate Rinne and see her begging us."
"Yeah, that would be amazing. Seeing sis Hilda begging for a cock would also be amazing. Oh, see the drugs are taking effect."
The drugs that were injected into them were very powerful stimulants that can make a girl cock hungry monsters. They would be willing to do anything for a cock.
The effect of the magic drug was immediate. The pupils of all four of the girls had changed into pink hearts. Their tongue was out and pussies were dripping with juice.
All six boys went close to the kneeling girls and put their dicks over their faces. The smell of the cock excited the girls even more and more juices started to come out of their honeypot. One of the boys said -
"Sluts, if you all want our large cocks, then beg for it. Prostrate, introduce yourselves as the sluts and follow all our orders for the night without question and we will give it to you."
Hearing that the girls whose mind was only filled with the thoughts of cocks did not object and prostrated before the boys. This was a rare scene, so the boys relished it to their hearts content by stepping on this head or by rubbing their pussy with their feet.
Then all four of the girls raised their heads and started to declare themselves as sluts. Rinne was first to speak up, followed by Hilda, Azusa and finally Vivian.
"I'm Rinne and I'm nothing but a nympho who loves cock. Please forgive this slutty harlot and give her your magnificent cocks, masters."
"I'm your big sister Hilda and I'm a hussy and a slapper. Please fill all the holes of this slut with your young and energetic cocks."
"I'm Azusa, a cock loving bitch. I will follow all your orders just please screw me with your amazing dick, masters."
"I'm Vivian, a very obedient slut. I will do anything you ask. Please, I beg you to grace this dirty whore your divine cocks."
"Well said everyone. Hahahaha. But first you all need to give us a great service. Now come and clean our butthole with your tongue."
Normally Azusa and Rinne would not agree to give them a rimjob. Hilda probably would agree but they were not hundred percent sure and they did not know Vivian very well. So they wanted to use this rate chance to do everything that normally would not be possible.
All four of the girls did as they were told and started to lick the guys butthole. Hilda, Rinne and Azusa looked like they were quite used to it. Even though Vivian was not used to it, she was a quick learner and mastered the method of giving rimjob very quickly. She was truly a model slut.
"Oh, they are doing way better than expected. The senior adventurers really had given them very good training huh."
"Vivi chan was very sloppy at first but now she is doing it like a pro. She really is an ideal whore."
After all the six boys' assholes were perfectly cleaned they gave the next order.
"Scissor yourselves and give us a good lesbi show."
The girls followed the order and started a lesbian show. Hilda was scissoring Vivian and their pussies were rubbing against each other. Azusa was also scissoring Rinne.
The boys were unable to hold back anymore and joined the girls. Two of them inserted their dicks between their rubbing pussies and others started to get handjobs and blowjobs from the scissoring girls.
When the boys were on the verge of blasting out they finally stopped the foreplay and gave the girls what they wanted.
Four girls and six boys interchanged partners and positions many times and had a very wild night. The girls were slapped on their ass and boobs and were also told what a big slut they were by the boys for many times.
Obviously the girls took it as praise and fully enjoyed their time. They were screwed by many cocks, were double or even triple penetrated and had an amazing time.
At the end of it all, all the girls were covered in semen and to finally end the wild party, all six boys peed on the semen covered girls and made them drink their pee. It was unknown when they would be able to get another chance like this so they tried everything they wanted from the girls.
After that, all of them separated with the promise to have more orgies like this. The effect of the drug was already over so Vivian was able to return home and then she had to go back to the guild for her job after having a small nap and a light breakfast.
Vivian was kindly given a magic item that could give the effect of a long sleep for even a small nap. It was somewhat of a valuable magic tool but almost all the adventurers had them, so giving one to their cute slutty slave was not a big deal.
-----
Now as Vivian had become somewhat well known as the newest slut to join them, she was asked to give some small services like a handjob or a blowjob in her breaks. All the other receptionists all did the same always and only she did not know about it. Vivian was naturally happy that now she could finally join her colleagues and she became closer to them.
Today, after her job was done, her best friend, another fellow receptionist, Layla called out to her -
"Vivi chan, I will be going to an orgy today, but the adventurers who invited me failed to get anymore girls for the night. I have been taking care of them since I became a receptionist here and I'm not sure I will be able to handle 11 men alone. Can you join me to help your bestie out, pretty please."
Hearing that her best friend needed her Vivian was very happy. She quickly hugged Layla and said -
"Yes, I would love too. Let's give the men a good time together. And I can't wait to have sex alongside Lala chan."
"Yea, I knew that my bestie was also a whore just like me. Let's go."