Manwhore, gigolo.
Take your pick.
Gigolos get paid.
perambulater baby carriage
trickster
a person who cheats or deceives people
Bloggins
The name of a random person.... as in "Forum contributor Bloggins went on and on about the benefits of eating kale again".
scofflaw
a person who flouts rules
Buksvåger (Swedish) – What you call someone who has had sex with someone you’ve already had sex with.