It's bigger...

'It's a lot bigger than...' ...is all you manage to moan.

"A lot?"

She chuckles.

"Yes, stepbro! A lot! Much, much, much bigger than yours!"

"She presses her cock harder against your thigh and lets out a low moan."

"And do you like it? Do you like how much bigger than you I am? Tell me, bro. Please, I want to hear it!"

All of a sudden, she squeezes your cock hard and holds it.

"Do you?"

You're unable to speak, overwhelmed by sensations.

With her other hand she lifts your chin, her thumb gently brushing over your lips. Her breathing becomes more rapid, her cock twitching as precum beads at the tip. You instinctively open your mouth, her thumb parting your lips.

"Do you?"

She humps against your leg faster, still squeezing your cock hard in her grip. Her cock brushes against your leg forcefully and her breath becomes faster.

"Answer, please!"

"Do you like being smaller? Say yes, stepbro!"

She looks you deep in your eyes, a wild look on her face. Her voice breathy.