While I was reading Branson bio I came across interesting fact:

Richard married Kristen Tomassi in 1972. The two tied the knot in an Anglican marriage ceremony at Holy Cross Church in Shipton-on-Cherwell. The couple were only 20 and 21 years old at the time.

Unfortunately due to some complicated intimacy issues, the couple did not last long. In Richard Branson’s autobiography, Losing My Virginity, Richard spoke about how whenever he and Kristen tried to be intimate, a painful rash spread across his body. After consulting with numerous doctors, nothing seemed to help. Eventually, Richard Branson and Kristen Tomassi parted ways and divorced in 1979.

That is from other article.

Few years ago I had a plate. After sex with her I would get some kind of rash on my dick (few times). I don't remember how long it lasted (Max few days), it probably didn't happen first few times. We both got tested. I did twice and nothing came up ever.

Forgotten about it till now.

Any similar exp?