"...cum on her face."

You lock eyes with a girlfriend for a long time. Of all the things she could have said, you certainly didn't expect that.

Cumming on a girl's face - the sort of thing that you see all the time in porn, and suspect because of that, most people have tried at least once. And you and Katie are no different. But you can't say it was much more than messy and awkward. As it turns out, professional porn stars have skills at making something look pleasing, that you don't.

But now Katie, in her horniness, has asked you to cum on Greenie's face. You're not sure how that thought even popped into her mind. But there it is, now out in the open. And you suppose, the first thing you should do is ask Greenie if she's okay with it. After all, her approval is...

Before you can even finish that thought, you feel Tess slide herself off your cock, and then slip her entire body down across her sister's so that she's now at the foot of the chair, crouching, her beautiful face looking up at your cock, clearly eager for your load.

Your brain tells you that you don't even know how to process this and how to react to it. Luckily your instinct tells you to grab a hold of your cock, which is about to explode anyway, and start to jerk it.

You look down at Greenie. She's so very pretty, yet in all the time you've known her, you've never imagined doing such a thing to her. After all, what was the point?

But now her face is waiting to be a canvass for your cum. Katie sits and watches. You can tell she's not sure what to do. She rests a hand on her tight stomach, resisting slipping it down into her jeans again. And for a moment she seems to want to reach out and grab a hold of your cock. But she pulls back. Perhaps actually physically jerking you off onto her sister is just too bizarre for her.

You feel yourself ready to cum. But Greenie is clearly not feeling patient. She starts to whisper. "cum. cum. cum. cum. cum..."

And soon Katie has joined her "cum. cum. cum. cum."

And both sisters are cheering you on like a pair of perverted cheerleaders.

Finally your cock explodes. Jizz flies out all over Tess's face. She let's out a little squeak, sounding half surprised, half delighted, as you cover her complexion with your cum; across her forehead, over her left eye, down onto her cheek, and a big dump sliding down into her mouth.

Katie watches it happen to her sister, shaking her head but smiling, no doubt unsure what to make of it all. Of course it was her idea. Then again, you're having thoughts and ideas that are a shock to yourself as well. At this moment, who knows what all of you are capable of.

And clearly your girlfriend is having the same thought. She cradle's here sister's head in her hands as you finish flinging your seed on it.

Then she takes a deep breath and speaks. "Tess..."

"Yes?"

"Remember when we were planning this, and we said there was a line we shouldn't cross, and we weren't sure where it was but we'd know it when we got up to it?"

Tess laughs. "Yeah. Have we crossed it?" She asks with casual complacency.

"No." Katie answers to your surprise. "But... well... I'm pretty sure what I want to do next crosses it."

Tess's lips curl into a big cum-covered smile. "Okay... fuck it, just do it."

Katie hesitates. "Yeah but I..."

"You already said it. We're perverts and we can't go back now, right? So do it. I'm ready. What is it you want, hon?"