How???

This might sound stupid but i had period sex with my first bf it was terrible he was so scared of blood all in all not a good time , now my new bf wanted to have period sex he has like a blood kink however I bleed a lot and I don’t know what to be wearing like a tampon or pad like how do u take off ur underwear in front of him and where do u put it so he doesn’t see the blood on the pad on ur underwear Idk I feel like that part is confusing and gross but I want to try period sex like someone explain pleaseeee