Yes.

'Y-yes.' Your words are almost inaudible as she slips her thumb into your mouth.

Martha presses her forehead against yours. Her breath becomes faster with each passing second, her eyes fixed on you, staring. Your eyes lock onto hers, her expression wild and intense. Your heart races in your chest as her finger presses against your tongue. You close your lips around it and start sucking.

"Thank you."

Her grip around your cock loosens, her thumb stroking your tongue slowly.

"Stroke your little cock, stepbro. Come on... stroke!"

Her tone is playful yet firm, and she releases her grip on your cock, allowing you to wrap your fingers around it.

"That's it. Stroke that cute little thing for your step-sis."

Your mind is a mix of shame and desire. It doesn't take long before your breathing quickens, your strokes becoming faster. Martha is still humping against your leg with her massive cock. She looks at you, her eyes filled with a mixture of lust and amusement.

"Step-brother... you're so horny right now. Do you like stroking your little cock in front of stepsis?

Martha leans in closer, her lips almost brushing against yours.

"I love it... the way you look when you do that. Your cute little face..."

"Stop!"

You stop in an instant, panting heavily. Your whole body feels flushed with heat. You look up at Martha. She gazes down at you.

"I haven't told you the best thing yet!"