Nursing my stepfather while my mother bathed - Part 1

Since the late afternoon of that Saturday when my mother's boyfriend came home to meet her my torment began, after all we've been through just the way that kid looked at me I already remembered all the crap we've done in the last few months.
It was just my mother looking away and Márcio staring at me from top to bottom, without saying a word I already knew what he was imagining, but I also knew that that day I had not the slightest chance of him running away from my mother to try something with me.
It's just that my damned mind led me to provoke him, I knew my mother would take a long time to get ready, so she went to the bathroom I approached to say anything and surprise he grabbed my hair and pulled me for a kiss, I resisted saying:
- Crazy, what are you doing?
- Relax, she's taking her time in the shower!
- No, not today.
He squeezed my ass tight and said:
- Girl, you don't know how I feel today!
Pretending to be curious I rubbed my hand on his trousers saying:
- You've been abused, you're a disgrace!
Tighten it up!
And if she shows up...
- Hurry, she'll be a while.
- Quickly what crazy?
Marcio opened the zipper of his pants pulling that stick out, holding my hair he made me bend over his lap, as soon as I put my lips on that dick I felt a cold in my belly afraid my mother would appear, but I had no way to escape from it.
I started kissing and licking that dick, then he pushed me to swallow more, as soon as his head rested on my throat I started drooling a lot, my saliva was already flowing all over his butt when he stroked my hair in the neck region and said:
Relax, I can see her coming out of the shower.
I sucked hard on that dick and squeezed his balls, that abused pervert was playing with luck, only to my torment I was loving doing that, Marcio held my hair tightly and began to guide my movements, it was every strong push that I felt until I wanted to vomit, for worse I could not make a noise at the risk of my mother hearing.
He stayed like two minutes fucking my mouth like that, then he let go of my hair, I walked away still half out of breath, and I felt his hand go through my legs, I muttered:
This is no place for you!
With two fingers rubbing over my shorts right in the region of my little sketch he replied:
How do you know I miss that little kiss?
I squeezed that limp stick with a fist and said,
- You'll miss it, I know you're going to the movies!
- I could take a little break!
She's already in there getting ready for it!
- I make it up that...
I squeezed that stick hard saying:
You're not going to do that to her again, the other day, I don't know how she didn't suspect that little escape!
- Shit, I can't get out like this!
What's the matter with him, is he so tough, is he crazy for jokes or is he a jerk?
- Too much of that!
I leaned over him, gave him one more blow job on that dick, and I said,
- Good, you deserve that punishment you cocksucker!
He grabbed my hair tightly and pulled me to open that stick as he spoke angrily:
- Ahh bitch, I'll make fun of that mouth then!!
He began to pump inside my mouth, but at that very moment we heard the sound of the bathroom door opening, I quickly moved away and went out to my room, I did not intend to step foot in the room that day, I lay on the bed and took my fingers inside my shorts, I felt how much I was moist, but that night I had no way, I had to satisfy myself with my own fingers even, only I had no idea what would happen later that night, but that is for the next story.