Is it normal that i like my wife to choke me during sex?

I like my wife to choke me during sex, or smother me in her vagina as I preform oral on her. I also like her to humiliate me verbally and spit in my mouth, and slap me about.

I'm a little worried about the choking as I'm getting really into it, and I'm pretty sure its leaving obvious marks, which I think my wife's daughter may notice, and shite, would that be uncomfortable.

I am aware that the choking and asphyxiation is both stupid and dangerous, and have done a lot of research on the matter, so please don't point this out to me thanks :D x

I'm just wondering is it normal, and do other people do this, as its not a thing people can speak of, and the few people that have spoke about it on the internet are a bit 'extreme' about it.

So am I as freaky as I'm feeling right now?

Cheers dudes.

x