Measuring Difficulties

When I measure sitting down I am a half inch longer in non bone pressed and bone pressed. With the ruler straight over just as if I was standing . Is this my actual size? I am a little overweight body fat wise, not huge. I read that your belly pulls your penis in when ur belly expands because it’s connected to the abdominal wall or something. What do you think or know . Appreciate the help .

Don´t be bothered about it. The anatomic features work similar the way you described. As long as this is no competition and you are measuring for the sake of your personal penis enlargement references, you choose the method you can reliably replicate and feel most comfort to produce.