YSK if someone has a sore/cuts in mouth/genitals, you should not sleep with them. They could possibly carry HSV (Herpes Simplex Virus), and they may not know it. Condoms won’t protect you from HSV

Many Americans ( like 1 in 6 Americans) carry HSV virus and do not exhibit symptoms. The sad part is even they do not know it. Condoms do not protect you from HSV. HSV is transmitted by skin to skin contact. Always get oral sex with condoms if you don t know the person’s STD status. Using a condom for oral sex reduces the risk of oral to genital transmission of HSV 1. If you are interested to learn more, visit r/herpes. Their wiki is solid. Also, HSV has no cure.