Actually, this provides an opportunity!

The Mad Doctor quickly realizes if he simply maintains the portal in its current configuration and doesn't fully reestablish the connection, he could effectively fast forward his experiments. If a future test subject was stubborn and eluded the local species for a prolonged span of time, he could simply let the more direct connection lapse and let nature take its course at an accelerated rate. More immediately useful, his wait to determine biological compatibility would be greatly shortened. What's more, his study of any potential gestation and rearing of young would be much less of a long term goal.

Franklin smiled to himself, collecting some choice selections of his recordings thus far. He had an idea of how to make this greatly shortened waiting process enjoyable. He would let his test subjects experience their new home on their time for now.

"NO! Don't you fucking dare! Nononononono- Yaaaaaahhhhhrrrrrggg!"

"Just fucking get it over with you litt- Fffffuuuu-"

"Please... just let us go..."

"As you can see, your friends were so good at acting as bait, they have failed to explore beyond their initial transition point," Franklin paced back and forth in front of the forcefield of his remaining test subject's cell, a large video screen behind him displaying their friend's capture and defeat in glorious high definition and enhanced lighting, "I must admit, I am rather disappointed. I didn’t expect you all to succumb so quickly to the first obstacle that presented itself." This was of course a lie, the mad doctor was actually rather ecstatic to have multiple test subjects in position to run the same experiments, duplication of results would mean he wouldn't have to arrange another test subject to repeat them later on. But he wanted to present a certain image of disappointment before the remaining Slumber Party Girls as he showed them the recordings of their friends 'failures' to show them what was at stake.

Franklin simply waited, letting the recording play out behind him and observing the girls reaction.

"When I -hrrnng- get out of here, you all -hah- will regret the day you met -ffuu- me. I'm going to... eh?! HMMMPH!!!"

"P-please... I'll be good. I'll be good... "

"No let me go!"

The debauchery on the screen continued and Franklin noticed all the girls fold their arms in front of them and squeeze their legs together, each of them instinctively shying away from the vulgar display of their friends... except the blonde with curly hair, it seemed she had taken a seat against the wall and begun to nod off! Huh...

"You there, against the wall? If you find this boring I assure you I can find something more invigorating for you if you wish."

"Allison! He's speaking to you..." one of the others half whispered, half shouted.

Allison jerked up upon hearing her name, then looked over at Franklin, her eyes ever drooping and having to constantly refocus as her head seemed to sway slightly left, then right, "Oh, uhhhhh, heeeeey, y-you said they were b-bait, rrrright?" Allison slurred her words.

'Oh great, this one is drunk,' Franklin thought to himself, "Yes, I did, as you will be if and when you are sent through that portal," Franklin responded ominously.

"Oh, uhhh, no thanks, dude," she said as her gaze shifted to the display of a Goblin vigorously plowing into Rebecca, one leg raised high up over its shoulder, "But, like... if they're bait, aren't you going to, like, reel them back in or something," Allison replied, seemingly completely oblivious to the implied threat. A few of the other girls even turned their heads to stare at Allison, shocked at how she was treating the whole situation.

The mad doctor was both incensed at her nonchalant manner and impressed that even in her **** state she seemed to have a better recollection and grasp of the situation than all the others. He had underestimated her. He would have to see about including her in the next round of experiments.

"We shall see. If I'm being quite honest, the way they performed, all three spreading their legs the instant they arrived, it may not be worth the effort," Franklin intentionally reinterpreted the results of this first experiment as negatively as possible. He hoped this would inspire the remaining test subjects to avoid being claimed by the other dimensions denizens quite as easily as their friends, lest they be left behind. Of course, other factors would determine their fate, but they had no need to know that.

Seeing that none of his subjects were dumb enough to correct him on it not being the girls fault they had been teleported straight into the clutches of those green humanoids by his own doing, he felt it best to get to the point of his visit. Franklin skipped the recording ahead a bit for a touch of dramatic flair.

"Ohfuckohfuckohfuckohfuck,"

"Glllk! Gllllk! Glllllk!"

"Hnnnnngggg!!!"

The girls in the cell heard their friends cries and all recoiled at seeing them now heavily restrained, the alien creatures giving their captives no respite as they used their bodies one after the other.

"Now," Franklin grins mischievously, "who would like to provide me with tonight's entertainment? I promise that you will watch with me tomorrow's batch of test subjects depart... in fact, if you perform well I might even grant a small reward. As for the rest of you..." Franklin turned his head to look back at the screen, Pepper, Ayita, and Rebecca doing a wonderful job of progressing his newest interspecies compatability experiment, "I'll leave this on for the night so you have a better grasp of what awaits you."

The offer and terms were set, Franklin simply waited to see which, if any, of the beauties offered themselves up.