How to Do It is Slate’s sex advice column. Have a question? Send it to Stoya and Rich here. It’s anonymous! Dear How to Do It, I’m a cis heterosexual woman. I’ve been with my husband for 15 years. He’s older and a big substance user. I think the second thing may be a contributing factor to his erectile dysfunction. He has a Tadalafil prescription and has communicated both in word and deed that he ...