I have been with my boyfriend for two years and have witnessed some abnormal behavior from his eighteen year old daughter. She had done things like play with his chest hair, ride on the front of the shopping cart, wipe her eye boogers on him, ask for piggyback rides, want him to feel her legs when she has and hasn't shaved her legs, feed him from her plate, put her boobs on the back of his neck while massaging his shoulders, and kiss him on the lips. My 14 year old daughter, his oldest daughter, my neighbors, and me all think this is very disturbing behavior.