Like most of you, I had that general sex ed that was like 'one day you're going to fall in love with someone of the same sex and youre going to have sex with them and you'll like it.' I never really got my lesbian sex ed, and so I was wondering, what is safe sex for two people with vaginas?
Safe sex for two people with vaginas is using a dental dam (or saran wrap works too) if you do oral, and it is getting tested before you do it and continuing to get tested periodically just like other couples. It is making sure your hands are clean and boiling toys if you use them. On the whole, sex for two people with vaginas is less dangerous than for other types of couples, but you should still be careful.
Here's a bit more thorough discussion. Lesbian and bisexual women's sexual health - Live Well - NHS Choices