sex on my period

So, my periods are sort of abmormal. I get them twice a month, 8 days each. Me and my girlfriend have been together for about 3 or 4 months and over my past few periods I’ve been progressively getting more and more horny around her (also due to the fact that she teases me while Im with her.) However today she said she wanted to give me head while I was on my period.

Im not really concerned with the blood, because I know it’s clean and it’s just a natural thing. Im just worried that it’s going to make me you know taste bad, and I dont want her to get grossed out by it.

Any ideas?