"slope of a function: A Journey Full of Mystery, Discovery, and Adventure"

Nighttime in “slope of a function”: only moonlight illuminates her naked body on the balcony. Cool air hardens nipples while “slope of a function” follows her hand trailing downward. She leans against the railing, fingers working furiously between spread legs as “slope of a function” records breathless whispers of pleasure. The risk of being seen heightens every stroke until “slope of a function” captures her muffled scream into her own arm as waves of climax crash over her moonlit skin.