The mere thought of this icky tampon critter turns him off entirely. And he is crushed under the weight of this forced coexistence. Squidward is the natural enemy of young TamponPants, and so brimming full of angry ejaculate that he can sometimes literally erupt.
And yet, despite all of his whining and complaining, he'll never have the opportunity for real release. SpongeBob desperately wants to be friends with Squidward, and considering how Squidward abhors him, being able to let go and stand tall again is something that he can only dream about.
I'm talking about erections.
Gary Is A Vagina. Note To Self: Stop Giggling
Finally, we get to Gary, who is quite bluntly SpongeBob's vagina. That explains why he is his "pet." SpongeBob is at home and comfortable with Gary in ways that he's not with anyone else. Gary is his constant companion; the creature to whom he devotes his entire life. SpongeBob feeds and cleans Gary, and even the times they don't necessarily get along are always temporary, because they need each other.
And just look how well they fit together.