Alright, you knew - I wanna cum more:

I've always found the idea of giving a girl a facial or even making someone a complete cumslut a massive turn on... of course, she knew this already. I felt kinda guilty for some reason even though she clearly just wanted to fulfil my wants and need.

'Ah, go on then, seeing as you know so much about my kinks, I wish I could cum more' I almost cringed at how awkward that felt saying that to someone.

'Yes!!' she giggled with glee 'I've seen you want that for so long now, it actually gives me so much pleasure to help youuu' she's practically beaming. 'I have to warn you, it's the trial period' remember you're locked down with the ""training wheels"" as it were till you've had time to digest the full power of having a fairy Godmother 'so I can't grant anything like I know you want... buuut I can do about 10 times the amount of cum in those big balls of yours' she giggled, seemingly turned on.

'D...do you get pleasure from this' I asked hoping not to have guessed wrong.

'Of course, Tiger' she winked, blushing slightly ' it's why we fairies love to help so much, we a get a LOT of pleasure from helping you, silly'.

You feel your balls strain, obviously growing with the new found ability to for this bigger load. It's sensitive... sore like someones firmly grasping you balls and stroking your cock. The experience is almost enough to actually cum.
You Both moan at the sensation, you from the obvious and your fairy Godmother from granting another wish. Her cheeks practically glowing with a full blush, her back aching a shrill but sweet squeal escapes her lips.