I made poses for Vertex and Garret, I recommend using the Garret Slime skin from this:
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(though any skin will work, the default ones too)
My pose:
View attachment Poses.rar
Arms reset position if you unposses, so you gotta reload the pose to fix it, also make sure to "Unlock Head", too.
And if you want more dialog from Vertex, add a dildo to his ass and enable meme dialog.
You might have to adjust the scale on Garrets balls for them to not wildly wobble, usually going small and then back to medium big will make them slide smoothly up and doen Vertex' chest.
Sometimes Garret also just floats in mid air, so just load his pose twice or 3 times to fix it.