Aftercare is a term used in BDSM communities that corresponds to checking in with your partner after sex, or in kink conversation, after the scene has finished, to ensure that you both feel satisfied and comfortable with what happened.
It is an important aspect of any sexual activity that includes the possibility of physical trauma, particularly impact play, which can include the offering of food, drinks, blankets, and ice or medications for any bruising to the submissive partner.