Getting nervous

You're getting nervous and you squirm around underneath her. With your hands on the bed, you push your chest upwards a bit.

"Lie down, lie down."

She grabs your arms and forces them behind you, gripping them tight with her hands. Your head is turned to the side now, resting on the pillow. Martha keeps her hold on your arms, pinning you to the bed.

"Hold still, hold still."

She slides in deeper, very gradually, her cock moving in you with a slow motion, deeper into your asshole. The sensation makes your whole body quiver.

Martha grinds into you, and she's almost all the way inside of you.

"Just like that... don't make a sound..."

You press your lips tight together.

"Shh, shhh,"

She breathes into your ear. You can't stop your body from trembling beneath her. She keeps her hands wrapped around both of your wrists, holding your arms securely. Martha pauses and then slowly starts to slide herself all the way out again. The slow friction makes you gasp softly.

"Uh, uh, uh...shhhh..."

Your face is hot and wet from panting against the pillow. You can't stop shaking.

She waits, keeping you there. The sensation is unbearable.

Suddenly Martha's grasp on your wrists becomes incredibly tight. In one swift motion she shoves herself back into you all the way.

You let out a scream of pain that echoes off the walls. Your face is hot from exertion. Martha lets your wrists go and grabs onto your hair. She yanks your head backwards off of the bed.

When realize how loud you just screamed, you clap both of your hands to your mouth.

"What did I say? What did I tell you?"

Martha begins sliding in and out of your hole slowly but forcefully, rocking into you with the whole of her weight. It's starting to feel less uncomfortable now and something in your belly is beginning to flutter. You can't help but make tiny whining noises in between breaths.

"Such a bad boy, so noisy."

Martha gives your ass a quick, hard slap, grabbing it roughly afterwards. She leans down, covering you completely again and breathing right by your ear.

"What if mom hears us? What if she catches me with my big cock buried in your little butt?"

Her words send a wave of heat up your spine. You moan.

"Oh, do you like that idea? What a dirty boy!"

"You want mom to catch us? To watch me fuck you? Huh?"

"Go on then. Cry out for mommy!"