Decide my religion

[Kovner]

So luego decide to roshambo for religions. If I win, he has to go to Friday night Synagogue services every week, and if I lose, I have to sacrifice a virgin (so I would be a satanist supposedly).
So clearly we agree to 1-2-3-shoot. Luego ends his masturbation-esque motion after 3 motions with a rock showing (so only throwing 1-2-shoot) and I throw scissors in the legit 1-2-3-scissors manner.
So, am I satanist?
Is luego a Jew?
Should we throw again?
What happens in official roshambo rulings when someone throws 1-2-shoot?

luego clarifies: there was no opportunity to change my throw after i made my decision (rock), i am just used to 1-2-throw. my 1-2-throw offers me no unfair advantages - however it does offer my opponent significant advantage. that i accidentally threw 1-2-throw was not mentioned until the game was already finished.