I'm gonna be a bit daring and say my vagina. Cause well it's my favourite part on my body and it took me very long to become fine with it, connect to it mentally and even love it. It doesn't have so much to do with its looks (but it sure looks fine) but more so what it can and does give me. And it was because I started listening to it and gave it a chance that I realised I was never really trans and connected to my bio sex. It never gave up on me, it never stopped trying to get my attention, and for that I'm forever thankful, cause now I understand. So my love for it goes deeper than just the sexual or visual aspect of it. It was my door towards my detransition, quite literally.