Kinda late to be worrying about such things. I would like to think the connection leading up to the intimate moment would be worth more than any superficial stuff.

As long as hygiene was good, then get over it. The most attractive part of any body is between the ears, and it impervious to age.

The last time I got intimate-for-the-first-time with anybody it was in the 20th century. I'm working hard to make myself presentable, and I expect to see some new things - but I will be exceedingly grateful.

If im having sex with somone and simultaneously inspecting their body and reformulating the way i feel about them, id better either be paying a fuck ton of money, or i seriously need to reexamine my understanding of how sex works

Opposite, or same sex. As long as someone is in reasonable shape, and values their health, I can accept all kinds of things. Very few humans are "perfect" - even many younger ones.
So what.
Keeps things interesting !

Think the last time I had sex with someone who had a perfect body it was, uhm, say, 30 years ago. Yeah, well go with that.

Now if someone has a perfect body it'd scare the hell out of me.

Everybody is different. I will not get intimate unless I like the person. When I like the person, the imperfections won't matter to me unless it is serious problems that I was not told about. Then the discussion is about honesty.

I actually find these kinds of things to be quite attractive in an intimate sense. I really enjoyed exploring my ex and seeing all the different moles and marks she had on her skin