The tag implication #31858 cum_exchange -> cum_in_penis has been rejected.

Reason: The first should auto add the second, since if exchange is happening, obviously the second would be. But not the other way around, since you can have that without full exchange

EDIT: The tag implication cum_exchange -> cum_in_penis (forum #288107) has been rejected by @NotMeNotYou.

what about exchanging of cum from one vagina to another, or some variation thereof that doesn't involve a penis?

The tag implication cum_exchange -> cum_in_penis (forum #288107) has been rejected by @NotMeNotYou.