Some kinda oily black substance

Even before Tom opened his eyes, he felt weird. He opened them to take stock of himself and his surroundings.

"What the fuck?!!" he said.

Tom tried to stand up but found himself slipping and sliding on the slick surface beneath him. His new form felt strange and alien, and he realized that he was no longer in his own body. He was a small black ooze. He looked at his hands to find claws and felt round his body to realise he had an elongated jaw, fangs, tentacles, and a prehensile tongue. Taken aback by the revelation, Tom tried to gather his thoughts and figure out what was going on.

As he struggled to regain his bearings, a voice echoed through his mind, "Welcome to your new form, Tom"

Suddenly Tom had a vision. He could see a girl with pale skin, long black hair and piercing blue eyes. Tom felt the girl's presence in his mind, her voice seeming to reverberate through his thoughts.

"Who are you?" Tom asked the girl.

"My name is Uriel" she introduced herself "I am here to help you understand and control your new form but its not because I like you or anything"

Oh great, she was one of those.

"Listen, Tom, you are in great danger" she said.

"Explain this!" he demanded.

Looking round, Tom found that he was in some kinda room with no natural light. There were torches and stuff but no windows. There was an attractive women with big boobies in front of Tom.

She had chalk white skin, pointy ears, pitch black eyes and white shoulder length hair, but tied in a ponytail that is itself then split into two that fall down towards either shoulder. She was wearing a revealing leather outfit that accentuated her ample curves. She was holding a chain that was attached to the neck of a naked woman on her knees that had the same racial features as her owner.

"You are inside a Svartalfheim temple" the woman smirked at Tom and said "I'm Eclavdra, welcome to our realm"

"Oh shit... Those are dark elves. Nobody but you can see me but if they find out I'm contacting you, they'll kill you" Uriel said.

As Tom tried to process the information, his gaze shifted back to Eclavdra.

"Don't worry, Asmodeus..." she purred, her voice like velvet over razors.

"My name is Tom"

"Err... What?"

"Why do I look like Venom?"

"Okay... Tom... Do have past life memories?"

"Am I dead? I got hit by a truck"

Tom decided not to tell the dark elves about the angelic vision he was having in case they decided to kill him.

"People in your world seem to get hit by trucks a lot, usually in Japan but your name is... Tom?"

"Yeah"

"Well, sweetie, you've been reincarnated as the spawn of the dark god, Chernobog"

"That can't be good" Tom thought to himself as he tried to make sense of his new reality.

"Are you my mommy?" he asked.

Eclavdra let out a deep, dark chuckle at his question.

"No, sweetie, I'm not your mother" she replied, her voice dripping with sarcasm "You're a black ooze that dropped off of Chernobog's body with no input from any woman. By the way, you being a reincarnate was a total accident. It wasn't supposed to happen. In fact, there's also at six others Chernobog has spawned for the same purpose. Can you imagine if the gods actually thought that was a good idea to send a bunch of NEETs to fight the forces of darkness?"

Tom tried to take in all the information Eclavdra was giving him. It was a lot to process and he wasn't sure what any of it meant for him. One thing was clear, though - he was in serious trouble.

"Oh come on, I was 18 years old!! The only reason I wasn't doing anything with my life was because I couldn't. My parents warned me that colleges were useless now so I needed to get a job but I had no such luck. And the only reason I was virgin was because the modern woman just wasn't worth it when can use your hand and 2D girls for basically the same thing but without the entitlement issues"

"Don't worry, you won't have that problem in Svartalfheim"

"Er... Tom, you're not a virgin. You had sex eight years ago" Uriel said.

"I was ten. I did not need to be reminded of that" Tom said.

"You got laid when you were ten? How big was your cock?" Eclavdra asked.

Tom narrowed his eyes at Eclavdra.

"I'm sorry. I shouldn't have said that" Uriel said.

"Okay, so how do I have sex with this body?" Tom asked.

"Well, you can either shape the ooze to create a penis or you can possess someone and use them as a host body. You won't completely take it over, it'll be more like a symbiotic relationship"