Totally agree with the above poster.
Kids mess around, play tie up games, no sexual desire/element involved.
As they get older, some continue to enjoy tie up games, sexual feelings perhaps being more apparent, just a natural progression into adulthood. As long as they play their games with people the same age, and consent, no problem.
As for tying, or being tied up by relatives, like cousins or big sisters, etc. Ok when you are a kid, just a bit of fun. But imo when you are an adult, it could feel or appear to be a little strange and embarrassing. Just my opnion, some people might have a different view.
