Millipede breeding question

[Tyler S]

I have three N. Americanus, I've sexed all three and I'm pretty much 100% sure that they're all male, but I still see a specific pair of them mating sometimes. Has anyone else ever noticed their millipedes doing this?

 

[pannaking22]

Yeah sometimes males will exhibit mating behavior with other males

 

[Wesley Smith]

Basically both genders always want to... get some...