Hey I just try to figure out the blueberry thing. Imagine a blueberry girl who enjoys her bubble-gum and blows up with juice. Some of us imagine that her juices could turn another girl into a blueberry - all sorts of scenarios, from innocent kisses to not so innocent all the way to, well, bursting and licking what's left.
Now what if she licks her own juice herself?
This sounds like it would be a case like if the blueberry juice had a viral quality to it, that rather than say cancer, where it devours your cells and reproduces, the "blueberry virus" would instead mutate and reproduce at a very rapid rate, changing the body's molecular structure causing it to inflate into a blueberry.
If that's the case, then her licking her own juice probably wouldn't have any effect, because her whole body would be converted with the virus that adding more wouldn't cause any new effects. If she was to say excreete juice somehow and another man/woman was to accidentally consume it in some way, then they'd probably turn into a blueberry with the same effects and traits as well.
(Not on here too often, replies might be slow.)