The ambiguity is amazing: If this was used for an LGBT poster,
   it could be:

   a) tail + penis (female + male)
   b) penis + penis (male + male)
   c) tail + tail (gender non-specific + gender non-specific or
   female + female)[1]15 - 1 (6)

References

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   1. http://icopiedyou.com/wp-content/uploads/2015/10/15-1-6.jpg