I Like Being Tickle Dominated

Id always try keep it unknown from people but my friends at university when drunk and playful ended up finding out. But I started to enjoy being pinned down by girls I was friends with and tickled to tears. Don't know why but being pinned and tortured is kind of enjoyful in a playful way especially when they tease you with talk.
I also really enjoy it when I would be threatened with tickling at times. Does this make me a sub?