U.S. Olympic boxer cleared of doping violation after she had sex with her boyfriend

Boyfriend, also an athlete, was doing drugs. Timeframes are not discussed, but some time after he did drugs and they had sex, she was tested and failed the test. She was slated to compete in Tokyo, obviously that's not happening, so hopefully she'll be competing there next year.

Apparently this was a first. I've heard of transmission of drugs through skin to skin contact, so it makes sense that they could be sexually transmitted.

https://www.cbc.ca/sports/olympics/summer/olympic-boxing-fuchs-tumultuous-year-june-13-1.5611258