Aliasing urethra_penetration → urethral_penetration
Link to alias

Reason:

Both grammatically correct, yet urethra_penetration is a nonexistent tag and isn't aliased yet.

EDIT: The tag alias urethra_penetration -> urethral_penetration (forum #283907) has been approved by @bitWolfy.

The tag alias urethra_penetration -> urethral_penetration (forum #283907) has been approved by @bitWolfy.

Wouldn't one of those technically imply being penetrated by an urethra, in English grammar? Meh, noticed this with penile_penetration tag for being penetrated by a penis, while obviously, the penis being penetrated is urethral.