Implicating cum_in_self → autopenetration
Link to implication
Reason:
As opposed to other cum_in_(__) tags, cum_in_self would imply that their own semen-spewing appendage would have to be penetrating their own oriface
EDIT: The tag implication cum_in_self -> autopenetration (forum #251338) has been rejected by @Rainbow_Dash.
Updated by auto moderator