Leo woke up with a loud groan, feeling the rough sheets of his bed rubbing against his naked body. There was something wrong; he shouldn't be in here. The last thing he remembered was collapsing on the street, and now . . . he was in what felt like his home.
Before he could even open his eyes, a voice called to him, gentle and feminine.
"Good morning, sunshine!" She yelled, and Leo quickly opened his eyes, waiting to see a person, not a strange black tentacle with fangs and two big white marks as eyes coming out of his shoulder looking down at him.
"What . . . what happened . . . what?!" He screamed, startled by the strange creature attached to his flesh, flashing him with those long and ivory fangs, smiling.
The small cluttered room was just as he remembered. With walls decorated with posters of various comics and anime he was a fan of, even his old cheap samurai sword was there beside his carefully assembled collections of multiple robots. A single red lava lamp on the nightstand was the only source of light apart from the sun bleeding through the curtains of his window. A yoga mat for stretching, dumbbells for exercising . . . all were there just as he had left them the night before.
Leo jumped out of bed, but then the tiny tentacular creature burst two tiny tendrils out of her head and massaged his shoulder to calm him. "Welcome back to the realm of the living, darling!" she added, trying to calm him down.
He took a deep breath. "I . . . did I die? Is this hell?" He inquired, staring at someone who could easily be mistaken for a devil tied to his body since, well. . . he was in his apartment, and New York was not even close to being heaven.
"So modest thinking that you would go to hell after being such a goody-two-shoes, but no, you are alive and well thanks to me," she explained and pointed a tiny black tendril to her.
Leo felt a wave of relief rushing through him. "Can . . . I get an . . . explanation? Please?" He asked with a small smile while taking a second to look at his torso, searching for a bullet wound, but there was nothing. Not a single mark.
"Of course! You see, I am Nigredo, an alien symbiotic life form that found your almost dead body and decided to bond with you in order to save your life," Nigredo explained with precision that could only be refined after hundreds of attempts.
He was rushed with hundreds of questions and sheer happiness. Curiosity mixed with the joy of finally getting some superhuman power. "I am thankful, but I must ask you . . . why?" Leo asked, having some healthy worries about this alien entity.
Nigredo chuckled and shook her tiny head. "Oh, you can nerd out all you want, darling; I can read your mind, so I know exactly what you want to ask. Thanks for being polite, though," she muttered as her infection was absolute.
Between his muscle fibers, inside his bones, and even snuffling inside his neurons was this alien symbiote. Fused to him in a way that was not just a simple black goo on Leo's skin but a corrupting infection that took its chances to invade each cell of the young man.
"What?! How much . . ." he muttered and then realized that each single dirty thought and dark craving was exposed to Nigredo. Leo blushed and began to shake; she knew about the box under his bed.
"I know you from the inside out; I had to fix a lot of stuff, and well, we bonded really well. I mean, I can leave if you want and find another host if you feel uncomfortable with my presence," Nigredo offered, giving him an easy way out without any strings attached. Making this relationship completely consensual from his point of view.
"What?! No! I just . . . I need some time to digest this. You saved my life, and offering you my body is the least I could do. Fuck, I would even do it if you didn't save my life. What kind of asshole would let someone die like that? Leo asked with a smile, feeling a little bit strange between his legs while sitting on the bed frame.
"Really? Saving the life of a bunch of alien goo without any reason?" the alien asked, teasing him a little.
"I don't need a reason to save a life," the redhead answered without a second of doubt.
Nigredo froze for a second, her black flesh quivering and shaking as she needed to restrain herself.
She chuckled. "I knew we would make a great couple," the alien added, using each fiber of her self-control to avoid rushing things.
"Wait, before that, let me check on my friends. I need to know if they are-" Leo said and went to search for his phone, but it was too late; the alien already had it between her tentacles.
"Don't worry! Checked for them while you were sleeping and messaged all of them! Each single one of your precious little buddies is perfectly fine, and they know you are just . . . resting after a long night," Nigredo explained, making it clear that he didn't have any reason to rush this.
"So . . . what exactly did you do to my body?" He said while getting up and approaching the nearby mirror on the wall.
"Let's make it more fun!" Nigredo exclaimed, and then he saw an interface appearing in his field of view, exactly like those RPGs he used to play with Sarah.
[Name: Leo Wolfgang]
[Age: 18]
[Race: Human]
[Profession: Cashier]
[Magical aptitude: Null]
[Science aptitude: Null]
"See? I can change the color! Even adjust the UI design!" She added while changing the black letters between white, red, blue, and orange, also changing the typography and the style of the boxes that surrounded each stat.
"I have sci-fi, fantasy, oh! I even have western if you like it!" Nigredo added, giving the last one an old paper-looking background with cow skulls on the edges and a cowboy hat perched in the middle.
"Black and fantasy style . . . that kinda fits me," he said, trying to not jump from happines as the interface took this elegant style with boxes that looked like vines with tiny swords on the edges.
Then, as he scrolled down with his mind, he saw it: his first upgrade.
[Name: Stud rod]
[Category: Sexual]
[Description: Your cock had been increased in width and length! Now it's a 25 cm prick as thick as a soda can! Perfect to please any woman you find fancy!]
"You changed my dick?!" He yelled, looking down and feeling his manhood getting bigger in the mirror, making it clear he was a shower and not a grower.
"Aaaaaaaaaaaaaaaand remove every single hair from the neck down so it doesn't get in the way while having kinky fun," the tendril monster added with a wink.