Amen, brother! That helps her be as uninhibited as she can be and feel sexy around you no matter what time of the month it is! Be careful about getting her menstrual fluid in your mouth, though. It can be dangerous.
I never used to do this, then one night my wife was on hers and decided she wanted to blow my buddy. No big deal, I knew he'd be down so I invited him and told him she was on her period so blowjob was it for the night, he had no problems. He got there and she went down on him first for a few minutes and he put his hand down her pants and started rubbing her clit, no big deal. All of a sudden he threw her on the bed, ripped her pants off and buried his tongue in her pussy, I had never even done that to her before. She came so hard. I decided that I had to try it and realized it's not gross at all!
I used to love licking my wife's clit when she had her period.....I would sometimes dip my tongue in and she initially would say it's gross but she would cum SO hard!!