'Interested' wrote in comments that he would like to know more, so here goes.
Yes I have worn a brassiere sometimes and padded it out. It did make me feel even more sexy, especially when I put a rather sheer black negligee over the top the effect was quite amazing.
I was wearing black stockings with a black and red trimmed suspender belt a little thong, which barely contained ny thickening cock. Finished with the bra and sheer top.
Looking in the mirror I became really excited, as I paraded up and down trying to see myself from all angles.
I had kept my cock contained for as long as I could. But before long the urge to stroke overpowered me, plus it straining against the thin nylon of the thong.
It was so hard and longing to be rubbed hard, I tried to go slowly but it was almost impossible not wank hard.
The sight of my reflection was so good.
I turned around and tried to see the rear view, bending slightly I really looked like a woman.
It was so so good.
I was rubbing harder now with my other hand running up and down my gorgeous stocking clad legs.
I looked and felt so incredibly sexy, and so horny.
Within seconds a great strand of cum shot onto the floor, still slightly bent and looking at my legs and arse, I continued to shoot the rest of my cum all over my stockings.
It was a very powerful orgasm, but I find when I am 'dressed up' they usually are.
Well that's all for now I will write later about when I wore my undies outside.