Advice?

I’m 27, male and I live in the UK. The UK for some reason has little to no opportunities for belly button fun or sessions compared to somewhere like America. I found someone who lives 40 minutes from me who really wants to meet me to finger and lick my belly button. He also wants me to sit on his stomach and crush his abs which I’m not really into and I’ve made that clear. I just want to know what everyone’s first time was like. What the nerves were like and how you overcame them. I’m not a virgin but I find my belly button just as sexual as my dick and since it’s something I’ve never done before, the nerves are consuming me, despite really wanting to meet this guy.