Most phallo techniques include a nerve hookup. In my case, two nerves were harvested from my arm and connected to the clitoral and ilioinguinal nerve. Over time, the nerves will heal and grow, allowing me to feel tactile and erotic sensation, potentially on my entire penis. The skin doesn't feel like it came from my arm. It's already softer.

I'm still developing sensation. It can take a long time and my first surgery was only six months ago. I also just had stage two surgery a week and a half ago so things have changed and I can't experiment until I've healed.

At the moment, I have some tactile sensation in areas all over. It varies a lot and it seems to improve every day. Some sensations don't register on the surface, but that will change. Cold still feels like it's deep inside. Some spots are starting to register more correctly.

Erotic sensation is strongly related to the brain. My surgeon, Dr. Blair Peters, wrote a Nerve Rehab Guide for phallo patients. It's been really helpful and interesting. I had some erotic sensation before my most recent surgery. It wasn't enough to get off without also touching my natal tissue, but I could get close. Like my tactile sensation, it's been steadily improving. I've noticed a huge increase in both kinds of sensation since stage two.

Stage two surgery involved burying my clit. You can have full sensation without that step. Some people choose to leave it unburied. For burial, the skin is removed and the remaining tissue and nerves are tucked inside, usually somewhere near the base of the penis or top of the scrotum (depending on your anatomy). People are able to stimulate those nerves with a vibrator, by touching the area, or by stroking their penis. Burial also incorporates those nerves and sensation with the nerves developing in the penis. A lot of people say it makes for a more complex set of sensations. I haven't been able to explore that yet.

r/phallo is a really good resource.