Audi for Denis.

(PS: According to the plot, Denis doesn't have an Audi yet. Got it? Got it. Let's get started.)
Denis had wanted a car his whole life. An Audi A7. He streamed a lot, literally every two days, just to save up for it. You, being a good girl, saw how bad Denis was feeling and decided to give him a birthday present.
You remembered saving up for a new phone, as yours was getting a bit old... Even though Denis had told you, "Stop it, I'll buy you a phone myself, I'm not broke." But you knew he was saving up for a car... That's why you earned your own money and put a little bit of it into your savings account with every paycheck. But then an idea occurred to you... What if you took the money you'd been saving, saved up some more (of course, take out a small loan if you were really short), and gave Denis his long-time dream for his birthday? And that's exactly what happened.
From that day on, you worked tirelessly, putting aside some money each month. And then... You counted your savings once again, realizing they were enough for a gift for Denis. And his birthday was in a couple of weeks.
You went to the dealership, taking Ilya Koriakov (aka Ilya Mazellov, Denis's longtime best friend) with you, and together you picked out the best and most beautiful Audi. (After all, you don't know much about cars, and Ilya was a great help.)
And so, it's Denis's birthday... You and Ilya agreed that he would call Denis and invite him to "go outside... Well, just to chat," and the gift itself would be standing outside.
"Hello, Dan, would you like to come down to the entrance? We need to chat."
And then, this exciting moment, you and Denis are going down in the elevator... You smile, unable to contain yourself, and Denis just asks: "Why are you smiling like that? Did something happen?"
You stepped out of the elevator. As soon as the entrance door opened and Denis looked out onto the street, the reason for your smile immediately became clear to him. He saw a brand-new black Audi in front of him, tied with a red bow, and Ilya standing next to it, filming Denis's reaction on his phone.