Fun / safe Sex
Since my wives have generally recruited their best friends as potential wives, they pretty much know their sexual history, but our path has been no unprotected sex of any kind until testing returns an all clear.
We often required testing twice, once when they expressed interest and again when they became part of our family. It was more meaningful to save unprotected relations for rhe intimate time after vows to each other.
I try to love my wives this way, unconditionally! Husbands love your wives, even as Christ loved the church, and gave himself up for her. Eph. 5:25