[Well, that's good, because if you were you might have to be pissed off at me.]

[Anyway. I will learn things and meet people and design-and-acquire personal superpowers and find out what the hell is wrong with the stars, and then I will take over the world and I will fix it. Step next: interview at Stanford.]

[I love you,] Alice says happily.

[Well, which one is it?] he asks reasonably, and indulges in idle speculation about a Bella-compass power.

[I don't know, they all look the same from the inside. This is gate twelve, are the gates numbered on the outside?]

[You're into autoerotic asphyxiation too?] Bella sighs. [Well, you could always decouple the two things - attach the sense of needing to breathe only to how much breathing you've been doing lately, not to how much oxygen that's been getting you. And have oxygenation and de-carbonization handled magically.]

[Handling a lungful of water is a different matter from just not breathing,] Bella muses.

[Whaddya mean?]

[Well, how are you planning to get the water out? Just coughing and coughing for a few minutes? And it can't be good for salinity either.] She's poking his medical skill now. [Whether it's freshwater or salt. If you just refrain from breathing, you don't have that problem. If you want to be able to inhale any random substance and suffer pleasantly and then cease at a moment of your choosing, you're looking at something more complicated.]

[Square,] he says succinctly. [It's not like I'm gonna take up drowning as a hobby.]

[I couldn't reasonably have guessed that,] Bella points out. [Putting a swimming pool in your lair and drowning five times a day, six on Sundays, is exactly the sort of thing you would do. Anyway. I still think it makes the most sense to tie your subjective sensations to how much breathing you've been getting done - make that the state of affairs when you suppress the power, so normally it won't trouble you, normally you'll feel fine and oxygenated - and meanwhile render breathing biologically irrelevant.]

[So you don't pass out by miscalibrating?] Bella says. [You can't make any wishes - such as taking the water out of your lungs and preventing it from doing whatever nasty stuff water will do in your lungs, preventing breathing aside - if you pass out.]

[It's not actually gonna kill me, though.] Or at least the risk of it doing so is acceptably low. [So I can just fix it later.]

[How about this: three states for the power,] Bella says. [By default, you don't need to breathe, but you will anyway if you're not paying attention, so you don't freak out observers. Change it on purpose, and you can inhale whatever you want, suffer the usual effects uninhibited, fun stuff. Fall unconscious, and you don't need to breathe anymore and your body will not automatically try to do it in case that would make things worse, but will expel whatever's in your lungs at the time.]

[Unconscious as distinct from sleeping, because that could get awkward fast.]

[I'm not sure how distinct passing out due to oxygen deprivation and sleep actually are,] Bella says. Her plane is starting to taxi. [But I guess magic is pretty good at telling those kinds of things apart.]

Good timing, too, the plane's starting to take off. [Well?]