You always thought you had problems with being insensitive down there, however, it would appear you just jerked off too much and lost sensitivity, 2 months in chastity fixed that.
Its been 3 weeks since you got locked, you are not allowed any stimulation of your little clitty at all. This is what you have to resort to for orgasms now.
Chastity was never really your thing, but neither was latex, however, now you find yourself at the mercy of a sadistic but sexy woman who only wants to torture you and keep you on the edge of horny insanity.