First your heart will start to beat that little bit faster... Then your breathing will increase. Soon after your mind will start thinking about all the things you want me to do to you. Then followed quickly by the realisation that you’ll never have me. That will then frustrate you and turn you on all at the same time until finally you can’t take it any more. The urge to whip out that cock and start tugging on it is too strong. You NEED to stroke over what you’ll never have.