Riches and Bitches: I have a gate to an isekai and leveling-up system!

"Here, try this," I softly encouraged while unwrapping the simple burger from the packing paper and passing it over to the girl.

Fay sat down on the edge of my bed, still hugging the big teddy bear with all her might. Yet, when her eyes laid down on the burger in my hand… Her nose prickled as she sniffed a little… Before reluctantly grabbing the bun and slowly bringing it towards her face.

For a moment, Fay stared down at the bun with a conflicted expression on her face while stealing short glances upwards to my face. Then, after much mental deliberation, she raised the sandwich and pried her delicate mouth open…

'Woah…' I nearly jumped when I saw some drops of grease slither their way down Fay's slim fingers. 'This looks…'

"Mhmm! Human Peter! Delicious!"

Fay nearly screamed out my own thoughts, although with a much different meaning behind them.

It didn't escape my attention that whenever Fay appeared disturbed or excited, she would revert to calling me "Human Peter" instead of just "Peter", proving that her manner of learning the language was a lot different from what I was used to.

Stumped by Fay's strange ability to somehow speak my language, I nearly missed the adorable image of the girl tearing the small burger apart with just small, elegant bites. Yet, rather than restrain, it likely came from how she was not yet used to her new, human form.

"Mhmm!!!" Fay closed her eyes and wiggled on her spot, struggling to contain her awe at the taste of the meal. Her voice reduced to just a muffled moan of satisfaction as she kept savoring the taste of the appetizer for as long as she could.

"I started with a plain one because I was worried there might be some vegetables you might dislike," I spoke out… only to pull another burger. This time, however, rather than using a plain and simple one, I picked my personal favorite.

Contrary to the most popular choice of the brand, it wasn't all that much bigger or more complex than a plain burger. Sure, it patty and buns were bigger, there were more slices of pickle and a different sauce…

But this plain, raw taste was exactly what I wanted from a burger. That was the taste I remembered from when my late mom brought me out for a cheat day to eat something as unhealthy as it was tasty.

On the other hand, back in the current time, Fay stood up from the bed and took a step closer. Yet, rather than taking the burger from my hand, she grabbed my wrist and leaned forward, taking the first bite out while it was still in my hand.

Fay then froze. Her body shivered when she suddenly rested nearly all of her weight on my extended wrist.

"Peter!" Fay rapidly raised her face, a wide smile beamed with happiness and anticipation on her lips. "Tasty! More!" she requested energetically only to lean over my hand again and take another bite.

Feeling as if my hand was taken hostage by some greedy cat, I could only watch how Fay's head shook as she savored the treat, her vibrant, puffed-out white hair trembling with every bite she took.

Pressured by the animal-loving side of my soul, I reached out with my hand…

And despite hoping not to commit the unthinkable before, I brought it down on the top of Fay's head, brushing my fingers through her rich, soft hair as I gently patted her scalp.

"Mhmmm…." Fay purred slightly, too absorbed in the burger to even notice my daring act.

Entranced by the moment, I didn't even realize when Fay completed her second sandwich, moving from taking small bites to licking all the grease and sauce that ended up spilling all over my fingers.

"Peter!" Fay jumped up right as I noticed the feeling of her tongue precisely cleaning every nook and cranny of my hand, causing the blood in my body to rush down to my pants. "Peter! More!"

With Fay's face right into my eyes, I simply couldn't resist the excited look in her deep, gray-blue eyes. My hand moved toward the bags with food before I even thought about it, forcing me to sacrifice the last of my reason to at least grab a huge cup of coke instead of yet another bun.

"Here, drink this first, or you will get yourself stuffed too much," I explained, passing over the cup with the straw already locked in place.

Yet, when I brought the fizzy drink to Fay, she instantly jumped back, suddenly leaving my personal space. Her hair stood slightly up as she stared down the cup in my hand.

If I were to squint my eyes, my imagination alone would suffice to produce a background noise of her hissing.

'Ah,' I quickly realized what was the problem.

For a being with animal origins like Fay, a carbonated drink appeared like an extremely toxic poison!

"Look," I raised my left to pull Fay's attention before bringing the straw up to my lips and taking a long, hefty sip. I then proceeded to gulp it all down, more to make a show than to hydrate myself with this sweet yet legal narcotic.

"P-peter…" Fay reluctantly reached out with her hand, as if worried about me drinking what she considered to be poison…

She closed her hand and waited a short moment. And as she saw that I remained standing and smiling rather than keeling over and spouting blood, she pried her fingers open and, with a certain dose of hesitation, she grabbed the cup.

At first, Fay cradled it in her hand, carefully raising her eyes as if to confirm that I was still okay… And then, she opened up her delicious, red mouth again only to collapse them on top of the straw I just used.

'Hold yourself back, you fcking hornass,' I cursed myself in my thoughts, gritting my teeth to focus on the pain instead of the delicious and adorable girl before my eyes.

Still, seeing her slowly figure out how to suck the drink up the straw made me imagine her lovely, full lips wrapping around and sucking on something equally as long yet quite thicker and harder…

'Curses,' I breathed out.

The pain was no longer enough for me to distract myself from my lust. Now, I had to hold my breath and feel the tickle of death from suffocation to keep my desires on the leash.

"Peter!" Fay screamed out once she finally took her first gulp. "Delicious!" she cheered up happily before grasping at the straw with her lips again and, this time properly, drinking some coke.

Before I could even react, she appeared to have drunk nearly a third of the massive cup… While her face deteriorated quite a bit. Her eyes moved up a little while her expression mellowed down, making her look like a cat who just got a brain freeze from sniffing frozen catnip.

Fay raised her eyes and noticed my stare, only lowering her head and hiding her face from my eyes as a blush reappeared on her cheeks. Then, while still suckling on the straw, she took a step closer and pressed her forehead against my chest…

Only to freeze yet again. Her body visibly tensed out as she raised her eyes with panic written all over her face.

"Human Peter…" she pleaded with a tearful voice, her face showing a mix of fear, sadness, and betrayal.

'What?!' I nearly freaked out… Only to suddenly figure it out again when I saw her body convulsing.

"Ah, don't worry about it and just let it rip," I attempted to calm the girl a little. Yet, knowing my words alone wouldn't do it, I squeezed my stomach, forcing the compressed air to move up my digestive tract and…

"Burp," I hid my mouth behind my fist, releasing all the air I consumed in my hefty sip from before.

"H-human P-Peter…" Fay muttered, her face showing she was still scared… but upon seeing my example, she decided to brace herself and…

"Buuuuuuuurp…." Just like I asked, she held nothing back, her throat producing a surprisingly low noise as all the air escaped from her stomach… And while the feeling caused Fay to get startled, leading to her squeezing her hands into fists… Squashing the still half-full cup of coke into smithereens and sending the thick, sticky liquid all over the both of us.

"Burp…" A small, secondary rip came out of Fay's mouth, right as she grew startled by the mess she made by an accident.

"Ah, don't worry about it," I quickly muttered as I stepped back to assess the damage.

And surely enough, both of our shirts were now all wet, covered in the sticky solution of sugar and some minimal additives. Which, to my well-covered terror, could only mean one thing.

"Seriously, don't worry about it," I spoke again, this time much louder, while waving my hand. "Still, let's stop with the food and now and get ourselves cleaned up," I suggested the only reasonable course of action while already bracing myself for the unique set of challenges it could impose.

"Clean? Fay and Peter?" Fay muttered, only to send a glance all around before bringing her eyes back to my face and then shrugging her shoulders. "River, none!" she spoke, putting up a proud, little smile when she used a new word.

"This won't be a problem," I spoke with a small smile, once again taken aback by Fay's adorableness. "Come with me," I added, reaching out and naturally grabbing Fay's hand, caring not for how it was covered in sticky coke. "I will show you something fun."