Female Perineal Innervation

Inferior rectal nerve supplies external anal sphincter, levator ani, skin of anal canal, circumanal skin

Deep perineal branch supplies perineal spaces muscles

Posterior labial nerve supplies skin of peritoneum & external genitalia

Dorsal nerve of clitoris supplies corpora cavernosa of penis, skin of clitoris

Reference Netter's Plates 390, "Nerves of Pelvic Viscera: Female" and 391, "Nerves of Perineum and External Genitalia: Female"