First. If i ever meet a snake in real life i would run the shit out of my pant. Second, Ho...

who knows its a manga anything is possible

Plot twist: the snake is the penis

shit

thank you i hate that

Doesn't snakes have two penis??

*a snake

Well, sex is not defined by penetration. You can have sex without it... ╮(￣▽￣)╭

Lesbian sex still use fingers which is also penetrating but how is it sex if you don't penetrating, I know fish don't penetrating, they just collect sperm (￣∇￣").
I did some research and I found that; The male snake inserts his two sex organs, the hemipenes, which then extend and release sperm. Snake sex usually takes under an hour, but it can last as long as a whole day.
A whole day sex is real lol (⌒▽⌒)

Waaaaao

So, for you, mutual masturbation is not sex ? Having an orgasm by masturbation is not sex ? Tantra is not sex ? Urethral insertion is not sex ? How do you define those then ? For me sex is about mutual pleasure, apart from "is there a penetration or not ?". (=・ω・=)

Copulation, as in copulation for procreating, sure needs penetration (even if we can also argue on that point since medical techniques like IVF etc have been invented and successfully used although this is beside the point) but for me sex is not dick/fingers penetrate vagina/anus/mouth it's the pleasure one gives to another, the connection and initmacy of it. (▰˘◡˘▰)