You’re certainly not asking for very much, are you? But your modest request tells me that there are some deeper problems here. I would guess that the sexual part of your relationship has always been on the weak side. And I would also guess that she hasn’t been getting sexually satisfied from sex. It’s even possible that she’s never had an orgasm. Of course guesswork is not what’s needed in your case. You two need to talk, you need to find out exactly what’s been going on all these years, and then you need to make repairs to your relationship. All this might not be possible for the two of you to do on your own. You may need professional help. And given how meekly you’re asking me for help, I’m not sure that you’ll be able to convince your wife to join you in counseling. But then again, maybe it’s exactly what she’s been dreaming of all these years. In any case, there’s so simple answer for your problem. You two need to delve deeper into your situation before you’ll be able to begin making progress, sexually and, probably, emotionally as well.