I'm a software consultant, so I travel all the time, twice a week, every week. I go to different places every month or three, but always through my local airport.
Two weeks ago, while going through the airport to fly out to my current customer I experienced a 'wardrobe malfunction'. The elastic on the boxer briefs I was wearing had failed just before I got into the security line, and I ended up going commando until I got to my weekly hotel. The whole trip I had an extremely visible bulge in my pants from a rock-hard erection. I was very embarrassed, but also found it very exciting. I stopped in a restroom to masturbate, but the movement of my cock against the fabric of my paints caused me to have a visible bulge until I got to my hotel room.
Last week, I wore a pair of underwear that I knew would hold up, and it did. Even seeing Lucy - the luscious security guard that I had a big crush on - hadn't caused my cock to do much more than stir a little bit.
This week while getting dressed for the trip, I realized that last week's trip through the airport was a lot more boring than normal. I was embarrassed at the thought of having a visible erection again, but I was also extremely excited thinking about it. I decided to go commando this trip on purpose.
I wore black slacks that should be dark enough to make any wet spots from pre-cum hard to notice. I also spent a bit of time before I left surfing some porn to raise my level of excitement. I didn't masturbate, but my cock was still hard and throbbing when I got in the car to head to the airport.
The drive to the airport was long enough that I had settled down by the time I'd parked my car. I undid my pants and pulled them down a bit to see if I'd leaked a lot of pre-cum on the drive. There was a bit, so I wiped it up a bit with a stray napkin still in the car from a previous drive-through meal.
I started to fantasize about Lucy just a bit so that I wouldn't lose my nerve on the shuttle or miss out on the full experience. I also unzipped my fly just a little bit to show that it was open, but not enough to show anything, or leave room for anything to come flying out. I un-clicked my seatbelt and turned towards the door to open it.
There was an elderly lady there, maybe 60 by the looks of her, staring right in my window. She caught my eye, raised one hand, and waggled a finger as if saying "naughty, naughty", then walked away. I was stunned for a second, and blushed. I had to wait a minute or two after she was out of site before I could bring myself to get out of the car. When I did, I realized that I was at full mast.
This time, instead of feeling embarrassed about walking around with a very visible erection, I felt proud, excited, and very turned on. I strolled confidently and leisurely to the shuttle from the parking lot to the terminal. I didn't pass anyone on the way, but there were three or four passengers on the shuttle. I stepped on and turned to look down the aisle. There was a couple in their 50s, and three college aged women. They were both sitting at the back of the shuttle, with three rows between the two groups and the shuttle exit.
I paused facing the back of the bus - and them - for a few seconds and twitched my cock. Then I sat down in in a row of seats facing the side of the bus. When the shuttle got to the terminal, I stayed in my seat -- politely allowing them to exit before I did. It wasn't a coincidence that they all had to walk past my full erection under my pants. I twitched it again when the college women walked past -- but I didn't make any eye contact with them. I was the last person off the shuttle. Climbing down the stairs to exit, my crotch ended up being right in front of the driver's face. Again, I didn't make any eye contact -- but I tipped an extra 10 dollars just to smooth things over.
I was feeling extremely embarrassed at this point, and I lost my nerve before crossing the terminal to get to the ticket counter. I rotated my laptop bag in front of me just enough to hide my bulge. When I got through the line, I realized that the old woman from the garage was working the counter. My lower brain kicked into high gear for half a second, so I let a couple of people go by until she was available to help people.