Aftercare is the “come down” part of a BDSM session. It is important because the flood of endorphins caused by play often cause a rush or natural high that can lead to a subsequent crash if not properly addressed. What aftercare consists of and how long it lasts will depend on the intensity of the session and your relationship with the submissive.
I always like to spend time with My submissives to help bring them down softly. I tend to be nurturing after sessions, especially intense ones. Soft strokes and soft words are My hallmark in post session interactions. It is important that the sub knows you are okay with him and his behavior during play. I also advise My submissives to treat themselves kindly for at least the rest of the day and try to avoid stress and confrontations immediately after a BDSM play.