Masturbating while imagining sucking daddy's cock

Dear Diary, As you know I've always been pretty sexual but since I started school I've been masturbating a lot more. The other night I was playing with myself in the tub and suddenly I started moaning Daddy and imagining sucking his cock. The fantasy got even more intense as I pictured him fucking me in the living room. I came soo hard I'm glad nobody was home. I feel ashamed and a bit dirty thinking about Daddy that way but my god it gets me hot.