Son wondering if I should tell parents about these desires or continue to keep them a secret

I'm in my 20s and I secretly have incest-related thoughts and desires about my own parents. They are in their 50s. I am an only child and have always had a very close relationship with them. I would say I feel closer to them now and appreciate them more than ever before, and I think they would say the same thing about me. There is a part of me that wants to be even closer with them. The desires are primarily focused on being in a throuple with them, but I also sometimes think about intimacy with them individually. It's romantic and sexual; there's an overlap between both aspects, in that it's not purely sexual or purely romantic. For me it's both.

I have had the feelings for quite a long time. Until recently, I've been able to control the desires without getting swept away by them. I've found that just having the feelings has helped me feel closer to my parents. Within the last few months, I've found that the feelings have been stronger than usual. I have been pondering whether to continue as I have done until this point, which is enjoying and accepting the feelings as they are, or potentially telling them. I realise that I'm not a mind-reader, and neither are my parents or anyone who responds. But there is a part of me that feels like there is a chance they would be open to what I am suggesting. The thing I wanted to ask is firstly, whether there would be anything wrong with it if my desires actually came to fruition. The way I see it is that we are all adults, so there wouldn't be anything wrong with it. I'm assuming others will say the same as this is an incest-positive community. What would you do if you were in a situation similar to mine?