me (12) and my little sister (8) have a baby sitter. he is in his 20s and he tells me that im beautiful and that im a special girl. and he always hugs me and kisses me on my face. when we watch telly he says that it makes him feel happy if i hold his hand or sit on his knee. and he calls me his special girl. and he tells me nice things that make me feel happy and special. he tells me to keep it secret or my mum will stop him from coming. why will my mum stop him from coming? he only wants to be my friend