Another character pees on this character in a sex scene. Apply Engages in (Sexual) >> Pissing on Others to the other character.
Try not to confuse this with Female Ejaculation. Use the text to determine which trait applies.
This character will almost always be the submissive partner in the sex scene, but rarely (for example, in Sono Hanabira ni Kuchizuke o), the peeing character will be the submissive partner and the character being peed on will be the dominant partner.
Urination is the ejection of urine from the urinary bladder through the urethra to the outside of the body. In healthy humans the process of urination is under voluntary control. In infants, some elderly individuals, and those with neurological injury, urination may occur as an involuntary reflex.