Usually sexual roleplaying involving Daddy/daughter, Daddy/son, Mother/son, Mother/daughter, Police/arrested, Teacher/student, Doctor/nurse, Doctor/patient, Uncle/niece, etc. The main stipulation is that one person is either older or playing older than the second person, or the submissive person is younger or playing younger than the dominant. Both people involved are ALWAYS adults.
"Daddy" Chris and his "daughter" Amy decided to participate in ageplay even though Amy was over eighteen and not really his daughter.
roleplay that involves one or more parties not acting their age, usually in a regressive manner.
"Stop with that ageplay right now and act your age!" "Sorry, Daddy!"