How will you have Amy tip you?

You make Amy drink your piss

"Open wide and make sure you swallow it all, Amy," you say, positioning her on her knees between your feet.

The lithe waitress leans forwards to take you in her mouth once more, obviously expecting a second attempt at a blow job to be her tip. However, you stop her with a finger on her forehead. She's supposed to be having sex with you willingly tonight, so in order to be effective, her tip needs to be rather more harrowing.

You haven't used the lavatory all evening and can feel it catching up with you so, placing the tip of your semi-flaccid member onto the young woman's lower lip, you let loose a powerful stream that threatens to overwhelm her completely.

She gags at once, desperately trying to swallow as quickly as you're peeing. At first you think she's not going to be able to cope and you'll have to punish her for making a mess, but as your flow slows, she finally manages to draw a breath between gulping down the pungent liquid.

When your bladder is fully empty, Amy licks the tip of your prick clean and you think she's succeeded, but then she claps her hands to her face as she throws up in her mouth. Resolutely, she holds on until she manages to swallow everything back down and licks up a yellow trickle running from her nose.

"Thank-you for allowing-urk-me to do-ugh-that for you-yakh-sir-uuurgh," the debased teen manages to speak with difficulty and you give her a moment to pull herself together while you accept her gratitude and praise her determination and stoicism. With the resilience of youth, it's not long before she seems fully recovered and even manages to smile nervously up at you as she wipes the tears from her eyes.

It occurs to you that you still haven't had a truly satisfying orgasm from the stunning girl before you and maybe she ought to rectify that right now.