Second question: assuming there IS another you in another universe, and he or she was smoking hot, and you banged, would it or would it not be mastrubation, and would you do it.
So it would depend on the definition of coitus used. . Fun fact: Gay and lesbian sex counts as masturbation according to several dictionary definitions of coitus.
Merrian-webster:
Cambridge dictionary:
. As for the second question, I'd totally sex myself.mas•tur•ba•tion (ˌmæs tərˈbeɪ ʃən)
n.
1. the stimulation or manipulation of one's own genitals, esp. to orgasm.
2. the stimulation, by manual or other means exclusive of coitus, of another's genitals.
physical union of male and female genitalia accompanied by rhythmic movements
the sexual act in which a man puts his penis into a woman's vagina
to quote flagamuffin, Obviously, the answer is: all of the above.