What a face the father has left when his son wants him to explain what a blowjob is.

My mother is working and my father as always watching over me at home. he all of a sudden he walks into the bathroom while i'm naked. we argue a bit and then he leaves. i want to get revenge on him and something very funny occurs to me. i tell him if he can help me because my back hurts and while he gives me a light massage i tell him if he can explain to me what a blowjob is because my friends talk about it a lot and i don't know what to say. things get really interesting when my father not only explains to me what it is but he gets down on his knees and starts sucking my cock.