Brother, you have come to the right hobby. Old fat and ugly is actually a huge plus. Just look on BP and at least half the ads have cutsie little hearts with "I love white guys" and "I love old guys".
Old guys are:
1). More likely to be at a point career wise to pay higher amounts on a weekly basis
2). More likely to only be able to get it up once per session
3). Less likely to forget they are only spending time with you because your paying them and develop some BS crush on a girl 25 years younger than you
4). Less likely to say "Hey, weren't you the captain of my sisters high school cheerleading team last year? This is going to be so awesome!!!"
5). Less likely to try and beat the pussy up like
http://m.eccie.net/showthread.php?t=1308844
6). More likely to be able to set her up as a SB so that she is only screwing one guy per week she doesn't like instead of ten guys per week she doesn't like
Just remember to be considerate of issues only relevant to being an OFUG:
1). If you wear a rug, tape that shit down. It really freaks them out when it falls off mid mish
2). Same for full dentures, Polygrip is your friend
3). Never see a provider with tits smaller than your own, it makes them feel insecure.
4). Be sure and pop the blue pill at least 30 minutes prior to the appointment. Why make her get lock jaw on a 45 minute BBBJ session just because you waited to see if she showed.
5). Your ass hangs down like pancakes to mid thigh and you're not Bela Lugosi, so do her a favor and avoid overhead mirrors
Other than that, screw any hangups, insecurities or feelings like you need to make sure she is sexually enjoying the session. You are the one paying, and other than a divorce attorney, it's probably going to be the single highest per hour service you pay for in life so enjoy it.
We are literally the fat kid in the candy store. Eat up!