Buddhism and sensuality are usually at odds with each other. Monks take vows of celibacy, and they seek to avoid sensuality in all its forms. So how does Buddhism fit in with non-orgasmic sex?
First off, the strict rules only apply to monks. Lay people do not have to be celibate. However, the Buddhist view on sensuality is skeptic for a reason.
Getting rid of all addictions is one of the most important ideals in Buddhism. You may have heard of The Middle Road, a concept that is seen in most religions. Do not overdo any one thing.
So Buddhists can have sex, and if they do have sex, it should definitely be non-orgasmic. The challenge is to not become dependant or addicted to sex, because if you do, you lose sight on the fact that happiness is in the mind, and not in the objects you desire.
So the connection between non-orgasmic sex and Buddhism is that non-orgasmic sex is less addictive than regular sex, and since Buddhism is all about not being addicted or dependant on anything, it makes sense.
NB: This is my ongoing investigation of the connection between Buddhism and non-orgasmic sex. I have not exhausted all the possible connections, and i may have to revise some of my ideas if they do not hold up to scrutiny.