Can I backtag you?: Not a problem! I'll finish any thread/log/post that needs to be finished or you want to continue.
Threadhop?: Yes. Just ask first if it's a private or locked thread.
Fourthwalling?: Go for it if it makes sense for your character to do so!
Make my character hug/kiss/touch her like a naughty boy?: Sure! / Ask / GOODNESS NO
Make my character fight/injure/kill her?: Yes / Ask first! / Ask Me
Use telepathy/sense things/magic?: Let me know first!

HMD?, plotting, whatever! Drop a comment.
(anon on, ip off, comments screened)