Implicating 9_tails → multi_tail
Link to implication

Reason:

Standardizing with the various other multiple body part tags.

Related implication suggestions:

• 2_anuses → multi_anus
• 3_anuses → multi_anus

• 6_arms → multi_arm
• 8_arms → multi_arm
• 9_arms → multi_arm
• 10_arms → multi_arm
• 12_arms → multi_arm
• 16_arms → multi_arm

• 6_balls → multi_balls
• 8_balls → multi_balls
• 10_balls → multi_balls

• 5_breasts → multi_breast
• 6_breasts → multi_breast
• 8_breasts → multi_breast
• 9_breasts → multi_breast
• 10_breasts → multi_breast
• 12_breasts → multi_breast
• 14_breasts → multi_breast
• 16_breasts → multi_breast
• 20_breasts → multi_breast
• 22_breasts → multi_breast

• 2_clitorises → multi_clitoris

• 6_ears → multi_ear

• 6_eyes → multi_eye
• 7_eyes → multi_eye
• 8_eyes → multi_eye
• 9_eyes → multi_eye
• 11_eyes → multi_eye
• 12_eyes → multi_eye
• 15_eyes → multi_eye

• 2_faces → multi_face
• 3_faces → multi_face

• 5_hands → multi_hand

• 4_heads → multi_head
• 5_heads → multi_head
• 6_heads → multi_head
• 7_heads → multi_head
• 8_heads → multi_head
• 9_heads → multi_head

• 3_horns → multi_horn
• 4_horns → multi_horn
• 5_horns → multi_horn
• 6_horns → multi_horn
• 7_horns → multi_horn
• 8_horns → multi_horn

• 3_legs → multi_leg
• 4_legs → multi_leg
• 5_legs → multi_leg
• 6_legs → multi_leg
• 8_legs → multi_leg
• 10_legs → multi_leg
• 12_legs → multi_leg
• 26_legs → multi_leg

• 6_limbs → multi_limb

• 2_mouths → multi_mouth
• 3_mouths → multi_mouth

• 4_nipples → multi_nipple
• 6_nipples → multi_nipple
• 8_nipples → multi_nipple

• 4_pecs → multi_pec

• 2_penises → multi_penis
• 4_penises → multi_penis
• 6_penises → multi_penis
• 8_penises → multi_penis
• 9_penises → multi_penis
• 10_penises → multi_penis
• 11_penises → multi_penis
• 12_penises → multi_penis

• 2_pussies → multi_pussy
• 3_pussies → multi_pussy
• 4_pussies → multi_pussy
• 5_pussies → multi_pussy

• 4_tails → multi_tail
• 5_tails → multi_tail
• 6_tails → multi_tail
• 7_tails → multi_tail
• 8_tails → multi_tail
• 9_tails → multi_tail
• 12_tails → multi_tail

• 4_teats → multi_teat

• 2_tongues → multi_tongue
• 3_tongues → multi_tongue
• 5_tongues → multi_tongue

• 2_udders → multi_udder

• 6_wings → multi_wing
• 8_wings → multi_wing
• 10_wings → multi_wing
• 14_wings → multi_wing

Related:
forum #264611

Not sure how many of those are valid.

The old policy is that if there's too many to count at a glance, it should simply be tagged as multi_*.

Which can be seen in tag groups such as solo/duo/group: any post with more than two characters is tagged as a 'group'. Which is simple compared to counting and tagging the exact number of characters. Body part counts should be kept to the same level of simplicity.

Several of the suggested implications have other problems. 4_legs overlaps with quadruped, which is not automatically multi_leg. Then there's 2_penises, which overlaps with diphallism.

Genjar said:
Then there's 2_penises, which overlaps with diphallism.

diphallism is specifically two penises with different bases, contrasting with hemipenes, which is two penises with the same base. It doesn't necessarily mean that there are exactly and only 2_penises:
post #14038 post #826129

klorpa said:
It doesn't necessarily mean that there are exactly and only 2_penises:
post #14038 post #826129

Mistags. Diphallism is Latin for 2_penises.

What we it be tagged as instead? triphallism? What if a character has two diphallic sets or more?
post #1687915
And there are times when a character has 2_penises, but situated far away from each other on their body:
post #1622669

klorpa said:
What we it be tagged as instead? triphallism?

3_penises, or just multi_penis.

klorpa said:
What if a character has two diphallic sets or more?
post #1687915

4_penises, or just multi_penis. Four might still be reasonable, but at some point it becomes too silly to try to count the exact number. Even four is not currently in use, as you can see from the lack of posts), and anything more than that gets increasingly absurd as a tag. 8_penises, 63_penises, 753_penises...

klorpa said:
And there are times when a character has 2_penises, but situated far away from each other on their body:
post #1622669

Pretty sure there's a tag for that, but I don't remember it.