I submit you will not lose the ability to orgasm, You may not be able to ejaculate but that's a separate function. It will just take longer to activate as with cis women. That's why foreplay is very important to women. From my experience the shaft begins to lose feeling but the tip of the penis is still very sensitive. I find the orgasims quite wonderful without having to wipe goo from my genitals, hands, clothing, underwear and toilet seat.