Okay I thought up an entertaining plot for this one so without further ado lets get into detail about what this rp is about.
Well Chimour had gotten bored around the house, and so he called up his friends and decided to organize a gathering in his house so he could play a spin off game based on the popular human game "Dungeons & Dragons" with his friends.
Little did Chimour know that this was not going to be a simple board game with his friends, but that something mystical and mysterious was hiding in the shadows waiting to drag him and his friends into the game.
(I know a little straight foward, but I wanted you guys to know what was going down beforehand so I didn't catch you off guard).
Chimour was just sitting down calmly on his bed wearing nothing but his pawpers since all of his friends knew about his need for them, and flipped through the channels on his tv until his friends came.

OOoo This looks good. I'll join!

Name: Lig Weather
Gender: Male
Species: Liger
Appearance: You all know what the lil Liger looks like. For the moment he's wearing his Pawpers Shirt and some shorts which will be discard soon.
Bio: Well at this point does anyone really need Lig's Bio?

----Lig's DnD character

Name: Ligose
Gender: Male
Species: Liger
Appearance: Wears some blue robes then tend to be open down at the waist showing off his diaper. Carries a Staff with a Crystal
Class: Sorcerer
Bio: Ligose is Lig's DnD character. This character is pretty much Lig and has similar back story. He's smart and good with his magic and has various magical items useful to the group. Such as a Bag of Holding with infinite supply of any diaper you could ask for.

Lig smiled as he walked the short way down the side walk with his DnD stuff. Pretty much just a character sheet and a picture he'd drawn of his character. Lig knocked on the door with a grin. He couldn't wait to get this going. It promised to be quite fun.

Chimour smiled as the first of his friends knocked on his door and slipped on some black robes, and after grabbing his character sheet, skull staff, and picture of what his character looked like walked off towards the door and opened it up for Lig.
--Chimour's DnD character
Name: Chimorion
Gender: Male
Species: Bat
Appearance: Wears loose fitting black robes with red skull designs on them, and wears them so that his diaper is also visible. Also carries a black skull staff.
Class: Necromancer
Bio: Chimorion's back story is the same as Chimour's, and carries around a skeletal horn which when he blows he summons creatures to aid him and his friends in their quest.
(Is The Necromancer class acceptable?).

(The Necromancer is actually a wizard or Mage (depending on which edition we're talking here) who specializes in the school of Necromancy. they get an extra spell per day above Wizards but they lose the ability to cast Divination spells. You sound like you're thinking more along the lines of Diablo II's Necromancer.)

I think I'll join in as well! I love DnD 3rd Edition!
Name: Nathaniel (Nate) Gittara
Gender: Male
Species: Otter/Squirrel Hybrid
Appearance: Currently wearing his standard shorts, onesie and a diaper of course.

Nate is flying towards Chimours house carring a rubbermade container with his D&D stuff in it. It really looks like it'd be too heavy for the little guy to fly with but he's having no trouble. As he flies he's hoping the guys will like his character.

(I'm still working on it. Had a plan in mind to make something earlier on, now I've got a reason to.)

(Riolu your the only one here that actually knows the rules of DnD. So we're gonna just kind a ignore a lot of em and just wing this. Besides I doubt it's gonna be anything like the game for long with what Chimour has planned. I think the plan is for us to get sucked into a Fantasy DnD type universe.)

"Hey Chimour. Wow Nice costume. Hope ya got more stuff like that. I wouldn't mind dressing up like my character." Lig said with a grin as he walked in holding his stuff still.

"Yup I got a chest full of costumes". Chimour said smiling.
"Oh and can you guess my class?". Chimour asked smiling.

(*face palms* Oh. DUH! Wow I feel slow now. In my defense I posted right after I woke up so I was RP'ing tired.)

Nate finally flies in through an open window and crashes to the floor on top of his box, panting a bit after the flight.

"I'm here! I brought my books and stuff too!" Nate looks around in confusion. "Don't we need a table or something set up? How are we gonna play D&D if we don't have a flat surface for the mat?"

(I'm going with the idea that Nate was as slow as I was on the uptake. Hope you guys don't mind too much.)

"I'd say Necromancer." Lig grinned and then saw Riolu. "Settle down Riolu we just got here. Geeze it'll take a lil while to set up. Sides you don't always need a mat for this ya know." Lig giggled and got his shorts off as he was now inside.

"You are correct sir". Chimour said giggling.
"So should we go get you a class appropriate costume?". Chimour asked smiling.

*Nate gets a wierd look on his face. You can almost hear the word, "Processing." Being repeated in his head until, "DING!"*

Oh! We're going that way! Okay. No worries then. I got my costume in here anyway. Just need to rest for a little bit more. *slumps over the box with a huff* In case you're curious, I'm going Cleric here. Fortunately I have the War Domain so I'll be able to use my sword. Aww shoot, I'm overthinking things here aren't I?

"Hehehe I think ya may be just a lil. Remember this is going to be DnD in diapers. So it's gonna have a much more loose feel to it." Lig said taking off his shirt and grabbed a sorcerer's robes from the costume box and found a cyrstal staff. "Ok I'm set costume wise." He grinned doing up the belt to leave the robes open at his waist so his diaper was visible.

"Aaaaww you make a cute soccerer Lig". Chimour said smiling.

*Nate, finally done panting, opens up his box and begins rummaging through it, falling in at one point and an audible clank is heard. A few seconds later, Nate springs out of the box wearing an actual suit of armor and has a cute little sword that looks surprisingly real. On one arm is a tiny shield.*

How do you guys like my costume? *poses a bit* I'm wearing a chain mail onesie under this!

will Paladins work as well? I know I've seen them on the board game. if not I'll change it.

Name: Tanos
age: 25
species: wolf
appearance: looks like a wolf and has a t-shirt and pants and a diaper underneath.
Bio: has been playing this for years and is a big fan. he's friends with his fellow DND players. he is a bit shy around new players but can warm up when needed to.
___________________________________________
DND character: Macco
DND character's class: Paladin.
Special abilities: can wield long swords and cast fire and healing magic. (I think that's right isn't it?)
Bio: is kind of like Tanos.

"Thanks Chimour!" Lig giggled with a grin and then looked at Nate. "Ah your costume looks pretty cool." Lig nodded and gave it light tap with his staff. "So what shall tonight's adventure be?"

(David your gonna need to give some more detail there. For bio we need actual information on your character. Not just that he's been playing this game for a while. As for the special abilities. Wielding a sword isn't a special ability. Anyone can do it and the same with magic. You need to be specific. What kind of sword? What kinds of magic. Remember your a Palidin so don't go overboard on the magic stuff. Your main strengths will be the use of weapons.)