If neither feels sexually wanted, they end up in a sexless marriage or divorced.
From the blogs.psychcentral.com
They'd gone from being a couple who didn't have much sex to a nearly sexless one.
From the ocregister.com
You're body shape is sexless compared to that of someone with a bit of an arse.
From the hecklerspray.com
We have a good marriage in many ways, but I cannot live in a sexless marriage.
From the abcnews.go.com
There are acres of attractive women in the film, but it's a curiously sexless story.
From the sacbee.com
Other than being sexless and a bit cold emotionally, he is not a bad person.
From the washingtonpost.com
She spends the bulk of her time lamenting their lackluster, sexless, loveless lives.
From the suntimes.com
Far from being sexless, Speke turns out to have been an engaging romantic.
From the telegraph.co.uk
We are still very cuddly and all, but I'm dreading the prospect of a sexless marriage.
From the washingtonpost.com
More examples
Neuter: having no or imperfectly developed or nonfunctional sex organs
Having no sexual desire
Sexually unattractive
(sexlessness) asexuality: having no evident sex or sex organs
Asexuality is the lack of sexual attraction to anyone, or low or absent interest in or desire for sexual activity. It may be considered the lack of a sexual orientation, or one of the variations thereof, alongside heterosexuality, homosexuality and bisexuality. It may also be an umbrella term used to categorize a broader spectrum of various asexual sub-identities...
(sexlessly) In a sexless manner, or in a way that lacks sex appeal