As the evening progressed, I found myself engulfed in the decadent pleasure of the birthday celebration. The scrumptious food and flowing alcohol had my senses buzzing, and my stomach was beginning to bulge out from the indulgence. But amidst all the merriment, an unusual yet titillating thought crossed my mind - I should try filling my panties with shit.
The idea was both naughty and exhilarating, and before I knew it, I had sneaked away to the bathroom. Once there, I slipped off my panties and slowly lowered myself onto the toilet seat. As I gazed down at the porcelain bowl, I felt a surge of excitement rush through me. Without further ado, I released a torrent of diarrhea into the toilet, feeling the warm, viscous liquid coat my inner thighs.
With a naughty grin spreading across my face, I pulled my soiled panties back on, savoring the squishy warmth between my legs. The bulge was already noticeable, and as I masturbated discreetly beneath the table, I couldn't help but fantasize about what it would feel like to sit on top of that huge turd.
Returning to the party, I picked an inconspicuous spot away from the crowd, perched on a chair, and let gravity do its work. As I felt the heavy weight settle into my lap, I closed my eyes, reveling in the pleasure-pain mixture coursing through my body. The smell was intoxicating, a heady mix of excrement and arousal.
Feeling daring, I reached down and started rubbing my soiled panties, coating my fingers with a thick sludge of feces. As the sensation of warm, sticky fluid seeped into my skin, I couldn't help but moan softly. The rush of endorphins was overwhelming, sending shivers of delight down my spine.
And so, there I was, in the middle of a birthday party, sitting on a mountain of shit, masturbating with my own filth, and feeling more alive than ever before. It was an ecstatic experience that I wouldn't trade for the world.