A human female anatomy lesson.

"Well, Rolo, humans reproduce sexually. The male impregnates the female with sperm which fertilizes the egg carried in the womb," Kari explained. "That egg develops a child, a smaller version of us which grows inside the womb for 9 months before being born."

"That is opposite to Hrimgnnr reproduction. After we molt, we split into two identical selves, fully developed and functional and with the shared memory of the Hrim's history. This process takes mere moments, but we do not reproduce for centuries," Rolo replied. The hrim's tentacles gesticulated as it thought, "So... which of you are male and which of you are female?" The girls looked at each other. "Ah.. was that a sensitive issue as well?"

"Our crew lost most of its male complement during an incident in space," I explained.

"Ah... I apologize. Then you are all female." Rolo said. I nodded. "It is unfortunate... I would have liked to compare the differences between the genders."

"We're pretty much the same," Jenny chimed in, "Only our reproductive parts are different. Women have vaginas while men have penises."

"That's not completely true, our physiology differs in that females are conventionally smaller in frame than males and we have more curvature here..." Kari clarified as she hefted her breasts, "and here," she patted her waist.

"But the main difference are our boobs and vaginas," Jenny said, shaking her breasts and pointed to her vulva.

"Would it be rude to ask if I could have a closer look at these parts?" Rolo said with same trepidation.

"Well, it's not something we'd be open to allowing in public..." Jenny said.

"I assure you, we will not be interrupted in this chamber, it has been cordoned off for our visit," Rolo said as the Hrim's tentacles began flicking about in excitement.

"Hmm..." Jenny pondered as she eyed the cephalopod. "Well, seeing as how you're our friend and you've been so nice to us, I don't mind letting you have a closer look at me..." she smiled as she lay back. She help up a nagging finger, "But this stays between us, alright? I don't want to get in trouble with my superiors over this."

The Hrimgnnr hesistated, "I do not wish to cause trouble for you, my friends. If it is a serious offence I shall keep my curiosity in check."

"It's alright, Rolo, friends do this together," Jenny said.

"Have you three done this together?" Rolo asked. We all looked at each other again.

This time we turned back to Rolo and nodded, "Yes."

"Then I shall partake as well..." the Hrim states as it slithered up to the engineer's petite naked body. Rolo paused, "Is it alright if I touched?" Jenny smiled and nodded. Rolo's colors went vibrant green as its tentacle brushed along Jenny's arm. It slithered over her shoulder and onto her chest, "This area is much softer..."

"Mhmm...." Jenny smiled as she watched the appendage spiral around her round breast.

"It's where the milk is kept to feed the baby once it is born," Kari pointed out.

"A food sac! How novel!" Rolo said. Its probing increased with more tentacles. They gathered around the ensign, covering her form until it looked like she was covered with moving snakes.

"Oh!" Jenny gasped.

Rolo retracted, turning a dark blue. "Did I hurt you?"

"Oh no! That felt nice," Jenny replied. "That was my vulva, the entryway to my vagina..."

"And the womb where you carry your child?" Rolo added. Jenny nodded. "I would like to feel that..."

Jenny hesitated for a second then nodded, "S..sure.." Rolo began feeling around again. Jenny stiffened when the tentacle pressed into her hole, "Other hole..." the tentacle entered the larger hole and Jenny visibly relaxed.

"Fascinating," Rolo said as it continued to probe. Jenny was visibly moved by the inspection, she was breathing more heavily and focusing on the far wall of the cavern. Her legs seemed to want to walk as they would jolt up a half inch every so often. Looking at the her belly, I could see the protrusion of Rolo's tentacle coming from inside; he was really feeling around in there! Suddenly Jenny jerked her head up and lifted her body off the sand with her hands and feet in a crab stance. She groaned and shook violently. Rolo recoiled, changing between blue and red for a shimmering purple. "Is she alright?!" Rolo asked with urgency.

"She's fine, you just made her orgasm!" Kari explained as Jenny rubbed her pussy and spasmed some more. "It's what we do for after we had good sex... kind of an incentive to reproduce."

"I see... so reproduction is pleasurable for you!" Rolo concluded. We nodded as Jenny finally calmed down. "There is so much I would like to know... only, I'm afraid I have over extended myself..." Rolo started going pale and sunk flat onto the sand.

"He must be running out of oxygen..." Kari realized. We helped Rolo back into the water and it opened up into its natural, larger form.

"Thank you, my friends. You have given me so much today, I wish there was some way I could repay you..." Rolo said.