Today, we explore a subject brought to us by Katrina, a 25-year-old reader with a sex life that’s dying on the vine due to her inability to achieve orgasm when she’s doing the deed with her husband.

Katrina worries about her lack of interest in sex, as well as her need for a vibrator to achieve orgasm—and says she feels left out when her friends talk about sex with a partner being satisfying for them. What’s a girl to do? Ask Nina, of course!

Got something you want to ask Nina? (Of course you do.) Drop her a line at tuesdayswithnina@gmail.com. Now, while can’t promise that every question received will get a personal response, however, those that do will be answered frankly, entertainingly, enlighteningly and, if we know Nina, in the spirit of happy, healthy sex and a satisfied libido.