My aunt, in the cowgirl position, slammed her hips hard. Ropes pulled her nipples and clitoris taut. As She took my dick deep for the first time, my glans pushed her womb upwards. My aunt forgot the pain, arching her back and squirting hard. Her nipples stretched further. Saliva dripped from her mouth, her eyes rolled back, and she released her vaginal fluid all over me.
Her pussy squirmed around my dick like a living creature. It was far tighter than I'd imagined, as she'd never been penetrated deeply. With her pussy fully explored, she sat atop me, coming and releasing her vaginal fluids.
"How's my dick? Did it fulfill your dream of coming hard?"
Lost in her orgasm, my aunt didn't reply. I held her hips tight and moved my waist in circles. My dick, leaking precum from the deep insertion, smeared it on the opening of her cervix.
The feeling of her cervix on my glans was amazing. I started moving in circles, smearing my precum on the opening, careful not to penetrate it. Feeling my sticky precum and my glans on the opening, my aunt began to cum continuously, her whole body shaking. Her nipples and clitoris stretched even more.
"Hey, bitch, focus. Tell me how my dick's making you cum continuously."
I started slapping her ass. After a while, the pain from her nipples, clitoris, and ass began to bring her back to consciousness.
"Aaaaaaaaaaaaaaaaaah, it hurts, Leo, aaaaaaaaaaaaaah, but it feels too good, aaaaaaaaaaaaaaaaah, your dick went deep, aaaaaaaaaaaaaaaaah, Leo. It's pushing on my cervix. Aaaaaaaaaaaaaah, a little more and it's going to enter my womb. Please, now increase aaaaaaaaaaaaah the size of your dick. Put it inside my womb. Stretch it. Make it full of cum. Aaaaaaaaaah!"
Vulgar words poured from my aunt's mouth. Having my dick deep inside her for the first time had blanked her mind. She was now a slut hungry for my dick. Her appearance was just as vulgar: stretched breasts, a clitoris pulled by ropes to resemble a small micropenis, eyes filled with hearty lust, mouth open with nonstop drool, and her pussy squirting juice all over me.
"Where do you want my dick again? Tell me loud and clear."
"In my womb, aaaaaaaaaaaaaah, just like Sophia, aaaaaaaaaaaaaaaah."
"I can't do that to just anyone, Aunt. Sophia's my slave, so she has the privilege of womb penetration. If you're willing to become my slave, then I can fulfill your demand."
"Slave! ... Sophia's your slave. Aaaaaaaaaaaah. Me, slave? aaaaaaaah."
A wicked smile appeared on her face. Every woman in this world wanted to be dominated. Becoming a slave was every woman's dream.
I started thrusting harder, encircling her cervix with my glans.
"Don't you want to be a slave? You'll enjoy all types of sex with me. I'll fill all your holes with my dick, making you cum like a slut. You'll be a knight in public, but my sow in bed. I'll fuck you whenever I want. You'll scream harder than Sophia."
My aunt started to clamp my dick harder with her pussy.
"Aaaaaaaaaaaaaaah, you'll make me scream harder than Sophia. Aaaaaaaaaaaah."
She remembered last night when Sophia was screaming like a bitch in heat.
"Don't you want that? Become my slave, and you'll be my personal onahole, just for my relief."
Hearing more and more degrading words made my aunt shake to the core. She thought of all the possibilities. In every future where she became my slave, she was happily screaming with my dick inside her. After a while, she made her decision.
"Master, I'm your slave. Please put it in my womb. Make me your bitch and squeal like a pig. Don't stop even if I scream. Just like an onahole, keep using me."
Hearing her declaration, I released the ropes.
Slapping her butt, I said, "You wanted to squeal like a pig? Then become a pig and face your butt towards me."
She stood on all fours and positioned herself. She was dripping with vaginal fluids, shaking her hips to attract me.
I increased the size of my dick to 30cm in length and 15cm in girth.
"Now, bitch, get ready. I won't stop until I'm fulfilled."
"I'm your sow, Master. You can do anything."
I brought my glans to her vaginal opening and slowly started to insert it. She didn't know I'd increased the size of my dick.
"Master, it seems like your dick has grown."
"Yes, my sow, it's grown to educate a sow like you."
She didn't realize how much I'd increased the size. As I inserted three-quarters of my dick, it reached my aunt's cervix.
"Master, aah, your dick has reached my cervix. It's thicker than before, too. Please push it inside now. Make me your sow."
I was inserting my dick really slowly, stretching her hole and feeling its warmth and tightness. My aunt was shaking her head, feeling the slow insertion, and as I reached her cervix, she tried to push her ass back to quickly insert it into her womb.
I held her ass and didn't let it happen.
"You bitch, you haven't learned your lesson yet. You just want to feel good about yourself. Do you want to cum again with just shallow thrusts? Looks like I need to educate you more that I'm not here to make you feel good. You're here to make me feel good. You're not getting my dick inside your womb until you learn that."
Hearing that, my aunt started to cry.
"Master, I won't do that again. I'll follow all your instructions. Just let me feel what Sophia was feeling."
I felt sorry for her. I hugged her from behind, bending my body with my dick still inserted. I started to calm her down.
"Okay, so from now on, you have to learn to control your hips first. It starts now."
"Master, I'll learn anything for you."
"Now, slowly push your ass and take my dick inside your womb. Really slow."
She smiled and said, "Yes, Master."