How old were you? And were you introduced by watching those softcore films that be on late at night on showtime or cinemax? (not sounding a pervert btw)
I remember having this discussion in my AP Psychology class
I was like 5 and I was playing hide and seek. I hid in my uncles room and accidentally stepped on the remote which turned on the TV. However, the VCR was still on as well and double penetration was on the TV