I know the taste of period blood… [MF]

As a person with a lot of fetishes i have tried a lot in my lifetime, however the one i remember the best was a story from a while back, this was the first time i had an experience with a more *unusual* fetish of mine.
So i was together with a short redheaded girl and we had fooled around for about 3 weeks before. The most common thing we did was i enjoyed eating her out and she REALLY enjoyed being eaten out, to the point where i would be teasing her to the point where she grabbed my head and pulled me down toward her crotch.
This particular day she was on her period, we were fooling around and as i was about to go down on her she said :

“trust me you dont wanna do that”

I knew she was on her period so i said something like :

“oh right”

We kept dry humping and making out for a while and then i once again started kissing her around her crotch and stomach (she still had pants and panties on), she kept saying stuff along the lines of