The bulk update request #3976 is pending approval.
create alias shared_masturbator (10) -> sharing_masturbator (0) # duplicate of has blocking transitive relationships, cannot be applied through BUR
create implication sharing_masturbator (0) -> penetrable_sex_toy (7906)
create implication sharing_masturbator (0) -> sharing_sex_toy (881)
EDIT: Added alias to sharing_masturbator to match existing shared_sex_toy alias. Blocking implication is at topic #34164.
Reason: By usage, this tag refers to the subset of sharing_sex_toy that specifically involves the penetrable variety (as opposed to double_dildos or anal_beads). shared_masturbator -penetrable_sex_toy had only three results, of which only post #3690178 didn't fit the definition. Meanwhile, there are vastly more posts featuring two characters sharing a single egg_vibrator that have never been tagged shared_masturbator such as this this this this this this and this, and that's just what I found in egg_vibrator frottage.
If you object to this implication, you are arguing that all sex toys are in fact "masturbators", so you must voice your support for an alias to sharing_sex_toy as well.
For what it's worth, most of the posts in sharing_sex_toy -anal_beads -penetrable_sex_toy -double_dildo are simply missing one of those tags.
Updated