>>528951150
It balances on the line between cheating and NTR, though it depends on hwo the artist / author frames it.
If a girl gets drunk and is taken advantage of, gets nakadashi'd, then has sex with her boyfriend once she gets home but now insists he wears a condom and he pushes the other guy's semen deeper inside her and unknowingly fertilizes her with another man's sperm, is it NTR or is it cheating?