**This might turn into a series of one-shots.I'm thinking about making a separate book about side stories/adventures that take place in ABDL Markimoo but don't get talked about (What I'm trying to say is this is a series of one-shots based on the prompts people want based off of the 'book' thing I wrote). Words are hard...**Warning: It does involve an adult in pull-ups. If you don't like it, don't read it.** The first story is about Matt, Ryan and Mark going rollerblading. The only problem is that Mark doesn't know how to roller blade...