Sometimes there is more liquid when snakes defecate- not sure why. You're obviously enjoying her, & she seems to be enjoying you too, but a caution: activity (handling etc) appears to inspire snakes to defecate, so try to remember when she last went, or check her ventral side just above the vent (cloaca) for "puffiness" indicating that release might be soon- even in your shirt.That once happened to me, btw- a snake that seemed very "friendly" let loose down my back, inside my shirt. Let's just say that once was more than enough.