transformation through sex
Transformations that happen during and/or are caused by sexual activity. Usually, the receiving character is the one getting transformed into whatever species the giver is, or even transforms into a clone of the giver.
Not to be confused with:
The following tags are aliased to this tag: copulation_tf, copulation_transformation, intercourse_tf, intercourse_transformation, sexual_activity_transformation, sexual_intercourse_tf, sexual_intercourse_transformation, sexual_tf, sexual_transformation, transformation_by_copulation, transformation_by_intercourse, transformation_during_copulation, transformation_during_intercourse, transformation_during_sex, transformation_from_intercourse, transformation_from_sex, transformation_through_copulation, transformation_through_intercourse (learn more).
This tag implicates transformation (learn more).