Oral, vaginal (penis if male or futanari), or anal penetration by slime_(creature), to mimic the act of sex.
Slime sex is considered separate from sex (if the sex situation happens without a penis), object insertion, interspecies, and bestiality, and should not be used with those tags. However, it can and should still be tagged as vaginal or anal.
For sex with slime girl, use this tag only if slime girl uses slimy tentacles.
If penetrating with slimy tentacles and they act really like tentacles, use tentacle sex as well.
Don't use this tag if it is just about to be inserted, but hasn't penetrated yet. Use imminent penetration instead.
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