my last girlfriend had some weird chemistry so she was constantly horny when on her period.
it's pretty nice if you can stand having to do it on a towel and you don't want to throw up when your richard is covered in blood lol
idk, personally the love is a lot better when she's on her period
also never loving make the mistake of not covering whatever surface you're having love on with a towel. we did it on my bed and hers and we stained the sheets and had to loving wash it in a sink and dry it with a hair dryer before my parents got home oh god it was awful lol