He had already analyzed the Abyssal egg and decided to eat it raw since it didn't seem to have any diseases, its taste was like eating raw, gelatinous fishy eggs with a salty after taste, so it was a bit unappetizing for him, he knew some rich people would love to eat this basically enormous gelatinous caviar, but he didn't, he also didn't dare cook it though, after eating it all he would wait for the next day to properly digest it.
--- the next day ---
he woke up to Inky giving him a blowjob, but he just pushed her aside gently, he was already in sage mode from the past week and wasn't interested, he told her to go to the gym if she had spare energy and she pouted and went away, then he went to the genetics lab to test his DNA.
And indeed, he hadn't noticed but apparently, his eyesight had improved as there were now genes related to eyesight connected to his in that third helix, he would need to take hunting and eating more seriously.
he remembered then he had a member from the armoured grouper, groupers are also strange as they change sexes depending on the environment, this one seemed similar and was a male, this was an alien planet though so he just didn't know, he also wasn't too excited about fish dick sashimi though, it had been frozen so parasites were out of the equation... unless alien parasites were more resistant…, so much to worry about… 'one step at a time, I have all the time I want' he thought.
--- 10 minutes later ---
he tried a bit of sashimi but still couldn't do it and cooked it a bit, he lightly smoked the slices on a box full of smoke, it gave it a smoky flavor and helped a lot, or some parts ate half raw after lightly cooking it on the skillet and blending it with some dashi soup as a smoothie drinking it in one go, and some made it more solid and made a fish paste that he mixed with kelp flour and fried, it was a pity he didn't have bread, some toasts and live oil would have helped a lot, after he was done 80% he couldn't take it anymore and he took out good meat and ate some barbecue to clean his palate, Inky came and also ate barbecue together, seeing the piece of raw meat still left she also asked for it and Erik didn't it mind and let her ate it, she ate it raw with her sharp teeth that seemed able to retract inside her flesh, Erik grimaced a bit but she was still cute, then they went to the gym to exercise were the Second Elder watched them and joined them, lifting enormous weights easily like nothing, she seemed to like the challenge though, he would have to print her heavier weights as she seemed to have become their uninvited roommate by now, then they all 3 took an onsen bath, perhaps because of being used to the cold of the ocean, the octo people really enjoyed the onsen a lot, but he couldn't set the water too hot as they got dizzy easily if he did.
--- 6 days later ---
It took Erik 6 days to set up and test the pressure resistance of the welds, he applied some kelp oil on the welds outside and pressurized the room at 2 bar, and remade the welds where he saw bubbling from outside, once everything was looking perfect and the pressure remained constant for hours with no loses in pressure, he also tested the integrity of the chamber, then added reinforcements from outside, the flaps of metal from outside and 2 sets of pressure safe welds made it extra sturdy, it also helped that it was 10cm thick of spaceship grade carbon alloy steel, he also added some padding inside for extra safety using solid cushioning on the walls, since the pressure inside would just flatten any air-filled cushioning.
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He had also refined 5 doses of extra pure concentrated aphrodisiac, adding also some C22H30N6O4S sildenafil to increase blood flow and sensitivity, then called the 4 Elders, telling them that he might have a way to make them evolve, they were excited about it but were confused as they just got inside a padded round white room and asked to drink a vial of liquid, Erik rapidly exited as they did so and he and Inky looked at the screen.
after drinking it the 4 elders stood still for a second and then their fins stood up as their dicks stood straight, even the First Elders as they roared and charged at each other, the Second Elder pinning the first elder to the floor and plunging inside her, and the Third Elder fucking the Fourth from behind.
It was apparently too stimulating for Inky to watch as she started stroking herself, then looked at Erik and took off his pants, starting to give him a blowjob as she stroked herself, taking his cock deep inside her throat.
Erik put his hand on her head and started pumping her, getting into it as it felt really good, and he thought 'fuck it, time to test it… it should be fine, I improved my heart after all…', took out a vial from his jacket and taking his dick out with a pop gave half to Inky and the other half drank it himself, the moment it entered his stomach, it felt like fire spreading to his entire body and his earth pumping loudly, he used the last of his sanity to look at the screen, as Inky was sucking him excitedly again, on the screen he saw the Second Elder plowing into the First Elders pussy, filling her up over and over, the First Elder looked bloated by now, as her own sperm and eggs accumulated on the floor, a bit further away the Third and Fourth Elders were taking turns fucking each other, both dripping sperm and eggs to the floor.
Erik took his cock back out of Inky as his member was rock hard and pinned Inky that didn't resist as he started to breed her, putting his cock inside slowly half and then the rest in one go, earning a moan from Inky, he started humping her from behind as he stroked her steel hard shaft, he kept plowing her tight cunt as their hips met with a loud clap over and over, feeling his dick touching the entrance of her cervix and penetrating inside, feeling all her slimy folds and eggs massaging his member, then after a while, he felt his dick stiffening and his balls tightening, and came the most he had ever come, filling Inky up, but his cock was still rock hard.
It took him cumming 12 times inside her until he started going limp, something that he would have doubted being biologically possible if he had been asked before, he exited Inky with a pop as semen fell and gurgled out of her pussy.
She took the falling semen on her hand, licking it while she stroked her shaft with her other hand, despite cumming 8 times herself and covering the floor in sperm and eggs, she was far from done though, she smiled to Erik and pounced on him as she kissed him deeply as she covered her 2 fingers in her slimy sperm and started fingering him to loosen him up, feeling it was wide enough, she penetrated him up the ass, her hard member reaching deeper than ever into his ass with how hard it was, she was also feeling wanted as Erik kissed her deeply, licking also her fins and fondly her breasts, she only got harder as she pounded him harder and harder, her dick filling him deep inside massaging his prostate from inside and making him cum again, while she softly bit his ear, Inky kept going though, her dick enlarging as she shot her eggs inside him with strength, she kept filling him again and again as he kept feeling more and more bloated, hours later she came one last time and fell on top of him with a smile, Erik came one last time a dry orgasm, feeling her cumming and fell unconscious.