What's happening to me? (Patreon)

I was just getting ready to snap some sexy non-giantess pics when suddenly, that familiar warmth of euphoric growth washed over me like a tidal wave. I couldn't help but gasp and moan as the bliasful sensations of magical expansion took over my body. But why was I growing? I hadn't cast any spells today!

Could it be residual magic still lingering in my system? Will I shrink back eventually, or am I stuck like this? 

Either way... how do I look? 😏