(NSFW) my advice for fingering (if you have a vag) is using your middle and ring finger and (spread knee) sitting on a bed and gently guiding them in. Then move your thumb to point towards yourself and then try relaxing and breathing so it will take them deeper. Then curl your fingers and try to avoid poking your hymen aggressively if you still have one! From there it should be pretty good for whatever u want! Don't fingerbang on ur period unless you got cleaning supplies tho b/c its messy af :/