I had seen a F/m lift in a circus trapeze act when I was around 9, That time I had some strange strong reactions in mind but could not make out what it was.
. when 12 my younger sister used to play pranks on me by suddenly creeping up from below between the legs and standing up piggybacking me. I really hated that for obvious reasons but she found it amusing looking at my
reaction I guess.
The feeling got sexual around 18 when i was front lifted by some playing girls
.... It is still going strong to this day
