I know you’re my dads friend but I can’t help being attracted to you.  I came over before everyone else today to let you know I have a huge crush on you.  I came early enough so we could maybe get to know each other better?  No one has to find out.  For all our families know, I simply came over to help set up for the big game later.  We can knock out a quickie then quickly set up the food table and no one will have any suspicions of anything between us.