An indecent proposal

Young Man, I have a proposal for You. When I'm 90, You'll be 40 with an 18 year old daughter. I marry her and You will be my Father in law, though You are young enough to be my Grandson. Yeah, I'll call You, Daddy. ... Huhnkie Lee for US President! //!-) ps: i turn 90 in 46 years and You turn 40 then. so You must be -6 years old now. I've been talking to a pre-life ghost //xD