not so much embarrassing as disturbing being only 17 and not having enough experiance to say anything worthwhile i just thought id read and see what everyone elses has done.. but then some weird shit came to mind...
when my sister was younger, maybe about ten or eleven or so, i think she must have had a bit of a hormone rush. growing up and onset of teenagerism and all of that.
she used to touch herself in the middle of the living room while we were watching tv.
i dont think it was properly masturbating as much as just seeing what was there and why it felt weird, but IN THE MIDDLE OF THE LIVING ROOM. while we were in there. i had enough of it eventually and told her it was disgusting and you dont do that shit in public. she hasnt done it since, and i dont want to think about it anymore. that to me is severly disturbing.
oh, and then theres the standard walking in on the parents going at it on the living room floor. dad was totally naked and mum had her pants around her ankles. being a very quiet 12 year old i just turned around and backed off knowing full well what was going on, and got my drink from the bathroom ((where i later saw dad cleaning himself off. he looked a bit embarassed, but made an excuse of just having a 'pom wash' to not waste water)). they didnt notice a thing, and to my knowledge still dont know i saw.