Hi Kyleg2007, before I get started on this answer, a quick note on the words you are using, as there is some better vocab you can use here. I assume here that when you say "normal man", you are referring to a person who has a penis and testes, and has a male gender identity. The term for what you are describing is actually 'cisgender man' ('cisgender' can be shortened to 'cis'); using the word "normal" in the way you did infers that people who identify as men who don't have a penis and testes are "lesser" men in some way, which is not at all the case and I'm sure you can get that inferring someone about that can be very hurtful and exclusionary to someone. I'm guessing that you just hadn't heard about the word "cisgender" before, so you didn't mean to actually infer anything like that, so please don't feel bad, and now you have the right word to use from now on when you need it. (Also, "normal" as a concept usually falls down pretty quickly when we look at it - there are so many ways to be human that are all valid that "normal" really isn't a useful concept in a lot of situations).
Moving on to your question, the kind of surgery you are referring to is a vaginoplasty, sometimes called "bottom surgery". The thing with bodies and people is that everyone is different, there is no way to predict exactly how one person will respond to this kind of surgery, particularly one as complex as this. Something that is especially important to consider in this case is that our most important sex organ is actually our brain
. If we didn't have all the systems that run from your brain, which are effected by our emotions, stress, hormone levels and lots of other things, our genitals wouldn't do anything on their own. Whilst it is normal to be curious about how bodies work, it is important that we frame our thinking and how we ask questions about people's bodies in a way that acknowledges their humanity and experience. I mention this because depictions of sex and bodies in porn, are often detached from the ideas that there is a person with feelings and experiences involved - it's really different to real life in this way. For instance, in a surgery like this a lot
in involved emotionally with transitioning and many medical processes (for example hormone therapy), and the emotional and psychological experiences that people have had of their gender identity and transition. As these are all such individual experiences psychologically and physiologically, there is no way to exactly predict how one person will respond to sexual experiences in the future (which is both a mental and physical experience).
I've introduced some dense concepts here so it is completely okay if this doesn't make sense all at one or it feels like you're missing some background info. These articles explain them more thoroughly: