Something simple:

'yeah... yeah alright' you think small, don't wanna scare off your new found Godmother 'how about something basic like I wish my room was tidy' (yeah I know yorn, but I was testing out I promise it'll get good).

Instantly my room cleared itself away, shoes hopping under my bed and sheets pulling themselves taught, but my Godmother stood there hand on a cocked out hip.

'Really...? That's it?? First wish?... Come on, I've been in your head for so long now, why don't you just say the pervy thing you want and stop playing it safe. I should have mentioned I can hear your thoughts but can only grant those that you vocalise' she stopped visibly peeved before continuing 'I heard all the cool ones, like I want a bigger dick, I wanna be able to cum buckets, I wanna have a portable blowjob pocket-dimension, that life was a video game, that you had ABS!'.

I'd played it so safe that I'd actually to piss her off... also considering the innocent appearance her sudden lack of niceties.

'Ah, shit you really do know all my thoughts' I realised.

'Well duh, now come on pick a proper wish'