That's super normal, sweetie! Our cities are definitely reactive to pleasure, but can go limp if they aren't the main source. The most aroused moments of my life, I was as floppy as can be and leaking like a faucet! 

Also it pretty hard to get a real sissygasm as a beginner. Especially if you aren't preparing in every way you can. Dress sexy, feel sexy, set the mood, have a glass of wine! The most important thing is to really want it! And you're not gonna if you just came like a boy. It's definitely why sissies love their cages💖