Diego visits his godfather 2: the first injection

What joy to have you here, little Diego. Let's see if you make it a habit to come visit me.

Diego's first impression was even better than expected. His godfather received him with a smile and a warm hug, and kissed him affectionately to make him feel welcome. Then he showed him where to put his things and took him to the room with the bed. There was only one, and they would sleep together, but it was a large and comfortable bed that his godfather assured him he would be comfortable in and sleep well.

Besides, this way I have you well controlled at night, and we can also hug each other if we feel like it, or I can playfully tickle you, which you loved when you were little, hehe.

The control thing is a habit I've kept from my time as a boarding school director, you know? While you're here, I'm responsible for you and I have to always know where you are and what you're doing. Ah, and I also warn you that I'm very demanding with schedules and punctuality, and with hygiene, and also with following the treatments that I prescribe to the letter.

Okay, get comfortable while I prepare some things, and I'll be right back.

He had barely had time to take out the essentials from his backpack and take off his shoes when his godfather came back into the room with what was clearly material for an injection: alcohol, cotton, a syringe, and an ampoule. Without asking or giving him any option, he opened the syringe and ampoule package and started loading it while telling him:

Come on, little Diego, expose your butt, I'm going to give you an injection that always goes a while before the first examination.

But... Diego tried to say that if it was essential to inject him, but his godfather didn't give him a choice. He already had the syringe ready and his attitude left no doubt.

Come on, don't be silly, it has to be done now. Then you take a shower and I'll do the examination. It's just a moment, you'll see. Turn around and show me your butt. Relax, don't tense up or it will hurt more.

Diego obeyed. He felt the wet and cold cotton with the smell of alcohol, a couple of taps on the buttock, and immediately the prick. His godfather quickly and cleanly inserted the needle into his buttock, attached the syringe, checked by aspirating a bit that it didn't enter, said "here it goes, it will hurt a bit but don't tense up" and started introducing the liquid, which hurt like hell. Diego complained, but his godfather continued injecting without stopping. It was quite a bit of liquid, and he didn't put it in all at once, but not very slowly either, at a constant and firm pace, ignoring Diego's complaints that he couldn't avoid. He finished soon, removed the needle, and pressed the cotton on the injection site for a moment, and gave him a kiss on the butt while telling him:

It's done, little Diego, you'll see that it will pass soon. I know it hurts, but I had to give it to you without fail.<...