A traditional tailor will ask: 'which side does Sir dress, right or left?'
Which way do you dress in your panties, up or down?
When I'm wearing a girdle or stretch support panties (all the time), I dress 'up' because I am then less aware of my male parts, and there is less of a low-down tell-tale bulge. Tried tucking, but the discomfort reminds me of what I have down there, all day long, which I would rather forget about.
So how do you dress?