"Dare"

I say without hesitating. Millie looks me in the eyes, smiles, then says:

"I want to see you jerking your cock."

I am still standing up in front of my step-mom, so I look down at her for a few seconds, then I put my hand around my condom covered cock and stroke it slowly, looking at Millie's big tits.

Millie looks at my hand stroking my cock with fascination, then she looks up at me with a smile, saying:

"You got such a nice cock Matt."

I smile down at my step-mom, her face is just a few inches from my cock, her mouth is partially open, like she wants to put her mouth on my cock.

Millie reaches her hand under my nut sack, touching it gently with her fingers, saying:

"Your balls feel so full. You really need to cum I think."

I start jerking my cock even faster hearing my step-mom saying this and feeling her fingers touching my balls. Millie keeps playing with my balls, staring at my cock, and moving her face closer to it, planting a kiss on the tip of it. I keep jerking my cock in front of Millie's face, and she moves forward and kisses the tip of my cock again, her head moves backwards, then she moves in to kiss it again, but this time her mouth opens fully and I see my condom covered cock disappearing into my step-mom's mouth!

Millie still has one of her hands on my balls, and her other hand now envelopes the base of my shaft as her mouth moves onto my cock. Millie's head bobs up and down a few times, and then I blow my load into the condom. My dick is spasming in Millie's mouth, and her mouth keeps moving on my cock until my cock stops jumping after I have finished cuming.

Millie takes her mouth of my cock, looks up at me, then looks at the tip of the condom which is full of cum, saying:

"Wow, like I thought, that's a lot of cum."

I look down at my step-mom, struggling to believe that she just had my cock in her mouth, although I wore a condom, so maybe not a full blowjob?

Then, without thinking, I just blurt out:

"I dare you to drink that."

Millie looks up at me and smiles, rolls the condom of my cock, careful not to spill a drop of cum, then puts the rim of the condom onto her lips, stretches it out, then with two fingers pushes all the cum into her mouth!

I just look at her, for a few seconds I can see her face contorting a bit as her mouth is full of cum, then I see her throat moving and she looks relieved as the cum has disappeared down her throat and then she looks over at me with her mouth open, showing me that all the cum is gone.