A lot of my sexual fantasies involve having a self-lubricating orifice to be penetrated via. I would really enjoy that. But - my understanding of vaginoplasty is that penile tissue is used to form the vaginal walls, having a roughly analogous vascular structure. And I like my cock. I like what it can do, I like using it to penetrate partners, I've had very good feedback about it. (continues)

So I don't expect it likely, but I want it to be possible to construct a vagina just behind my penis. I'm not sure where the tissue would come from or if there would be serious structural problems. But that's what I want.

And I'm not sure how to start researching it.