I think I always had small testes, but I'm sure they were small when I was in my 30s (I'm 63 now, almost 21 yrs post-op). There are passages in a guy's lower abdomen thru which the testes descend to get to the sack. Some of us can/could push the balls up into these passages. A gaff will prevent them from popping out and hold a penis, pointing back, tight to the body.

I can describe a simple gaff. The 'holding it in part' is an isosceles triangle about 4" wide and 7 - 10" long. The 4" wide part is in the front and is sewn so a belt (shoe string size or slightly larger can pass thru it. The belt is tied, etc. around the abdomen just above the hips so the narrow point of the triangle hangs down in front of the crotch. The point could been sewn to make a belt loop or a belt sized string could be sewn to it. If it's a string, just pull the string back thru the crotch and tie it to the belt. The belt will be pulled down in the front and the back, but held up with the hips. Tightening the belt and/or the back string will pull the gaff upward holding in the balls and dick.

As soon as i started dressing for more than a few hours, I would get used to the parts tucked up and back, then not even notice them. I rode a 100 Km bike race tucked sitting on those parts and it didn't bother me at all.

I had two problems wearing girls jeans; my quads (thigh muscles) used to be pretty big and the jeans would sometimes be too tight there and often if they fit everywhere else, the waist would be too small. I could get pretty lean, but my waist stayed fairly large. At one point I was 40" chest, with no breasts, 29 or 30" waist and 39" over my stick-out butt. I wore a 12 or 12 tall in just about everything, but I think misses size 12 jeans had something like a 27" waist. I never tried anything like a corset, that might have worked, but I didn't want the expense. I also didn't know any XDer or Tgal that admitted to having one.

Hi Beyogi.
I might be just the person you're looking for.

I must confess, others would describe me as a 'she-male' and for want of a more descriptive title I don't let the word upset me. frankly, I'll describe my self.
Height 1,75m (5'9") Bust 36C Waist 30/32" Hips 38 Size 8-EEE to 9-E shoes. Weight 12 stone 8 pounds (176Lbs.
I still have my male genitalia and It is invisible when I tuck backwards, I cannot push my testicles up into the iningual cavity because i have had patches inserted on either side to correct a bilateral iningual. Consequently, my testicles tuck backwards alongside my penis to become invisible if I wear tight cycling panties to hold them back. Strong, lycra panties with a thick protective pad in the crotch to protect said crotch from the rigours of the saddle on long rides, also serve perfectly to hide any trace of a 'bulge'. Additionally, my genitalia have atrophied because I self medicate with Progynova and Spirolactone, so there is now little to hide. The secret for me and most of my friends is tight underwear and control-top tights, (panty-hose)

If you have any other questions about tucking, PM me.

I am however, planning on an orchidectomy some time this year to obviate the need for Anti-androgens, (Spirolactone.)

...cheat! :) Once he arrives at the Academy, if he's got a sufficiently large allowance, send him on the first bus to Dunwich and Cecila Rogers' boutique. She's helped many students with custom clothing requirements (including Ayla Goodkind, who, although looking very girlish [with a typically large chest], has a rather large package 'down below' and still considers himself male).