I think I might have gotten into my own head with it when I first noticed what you meant when I touched my lips. I touched my genitals after and then went to my thighs. My lips and genitals I can clearly feel that they are being touched by my finger and I don’t feel it through my finger. So I started poking my thighs, chest, back, feet, etc and it kept feeling the same but I think I was pushing too hard it had the experiment in my head too much. After reading this post I can feel the difference testing my lips vs my forehead and from there I seem to weirdly be able to tell my brain is influencing wether I feel the sensation through my thigh or my finger if I do that next. If I go from my lips to my thigh I feel it in my thigh, if I go from my forehead to my thigh I feel both through my finger. It’s like my brain is screwing with me/itself because it knows what I’m doing. I bet if I was less focused on what I’m trying to experiment with that I could do it in a more decoupled way. Such a small but cool bit about myself that I had no idea was a thing. Thank you for explaining and walking me through the process.