Marceline and Stevie had both previously made messes for messyhot, but have never had a chance to work together. At the open of the scene we spend a moment catching up on what they've been up to, and then get the decision of who gets to be messy first. Marceline elects Stevie as the first recipient, then shoves her onto her knees and pours the first bucket of blue slime across her body. Down in the tub together and still wearing their tops and panties, the girls continue coating one another in blue gunge and tossing it back and forth. They amount of fun these two are having is clear as they giggle and squeal. Stevie says they need more slime and pours it all over Marceline's head and into the back of her panties giving her a super messy wedgie and chanting "slime slut slime slut!"

The ladies want to see how much more colorful we can make this situation, so I switch on the black light and we enter a UV rave mode where they can continue destroying one another in colorful goo. Never satisfied with only some mess, I add another bucket of blue slime and then surprise them with a slime blaster to the face. After motor-boating Stevie's ass, Marceline relieves her slime partner from the burden of panties. The favor is of course returned with lots of slime spankings. As the ladies peel their clothing off, they wring out the excess slime into one another's faces. With the ladies now fully naked, we find ourselves down to the last bucket of slime. With blacklight fired up we get a nice clean pour of neon yellow slime over their eagerly awaiting faces. Some slime makes it into Marceline's mouth, which she spits at Stevie with joy. We go back to normal light and the girls note that they look like they're covered in gogurt. Positioned hip to hip, the ladies lean back and have me pour slime directly on their naughty bits so they can feel each drip impact. With all of the slime exhausted, Marceline and Stevie decide to engage in a shaving foam war and cover one another in shave foam. We wrap the scene up and let them shower off, but I discover there was a little yellow left and dump it over Marceline as they rinse.