As Nate lounged a bit he saw ripples in the water to his bedroom, but no shadow of a person entering... He should've been alarmed, but his muscle memory told him this was normal and... Sue... That took Nate back, before this reality the two had a little bit of fun as friends back in early childhood. They then drifted apart fast... here though Sue was a slime who lived deeper in the aquatic complex. Unlike when they met from their parents trying to get something to connect here Sue had just wandered off/ran away for a bit... and since she was a slime entering any area where the water freely entered and exited was easy. Sue ended up in Nate's bedroom and the two were a little fascinated with each other... Then Nate's parents found out, found Sue's parents, and now every now and then Sue would end up in Nate's bedroom and they'd hang out before Sue had to get back home.
One of the bigger differences between Sue here and Sue then was obviously the gelatinous form. Earlier on Sue would just come in a somewhat blob form that could easily deform or change shape a bit, but tended to default as a blob. Now they tended to go with a humanoid shape, but unlike proper fleshy organisms slimes were a bit... non-gendered. Unless a slime desired or chose to follow the trends of a particular gender they'd generally mimic a form closer to a mannequin doll, and tended to get mistaken as him or an it. Sue was no exception having had no biologic or social pressure to do much more than look vaguely human. Sue then vibrated what passed for vocal chords and asked "Hey, just passing through. Wanna chat?"
"Eh... Sure was just thinking for a second..." Then Nate wondered what the heck the gender buttons would do to a slime? The most "sex" they did was one injecting some "essence" and then a little baby slime would eventually show up.... Eh whatever... Nate pushed the button with the human Sue's female form in mind. Nothing seemed to change for a bit.
Then Sue asked "So umm... I've been thinking of having a change of form... umm... could I get your opinion on it?"
Nate raised his eyebrow and said "Sure, go ahead then." Sue felt a little bashful then hopped into the water hallway as if to change away from his eyes. Then then Sue emerged from the pool a minute or so later... and it was... feminine in a way. Slimes didn't really gain or lose mass that easily, thus when Sue tried to be more feminine by being smaller and thinner they had to put the mass somewhere... giving the illusion of a shortstack girl.
"Do you think this is cute?" Sue asked trying to make her voice higher pitched, but it coming out a little off. Nate walked over and gave her a pet on the head.
"It's cute, but I think you need practice."
Sue's arms grabbed Nate's as she asked "But don't you mammals like big breasts?" and then guided Nate's arms to her chest area. Nate having been a longterm friend had touched Sue a decent number of times. It's like touching a water balloon without the latex in exchange for a membrane made out of enhanced surface tension, and if the slime lets you into it... then it feels mostly like water but a little thicker. There wasn't much heat either.
"Kinda, but these... aren't really..." Nate thought that Sue was being adorable and eventually could be more attractive to him. "I think you may want to study some anatomy. Get the proportions more right... maybe figure out if you want a more defined face or hair style."
Sue kinda rippled there for a bit as they shrunk back into a more blob form and in their normal voice said "I think i'll do that. See you later Nate." Then hopped out of the room.