Firstly that type of issue needs to be brought to the director of the facility...
When I was an NAC/CNA we had that issue with a couple people and one of the CNAs got fired for assuming it was her responsibility.
What our director did was first she based her decision off of if the residents were capable of making their own decisions and understood their actions. She explained some guidelines that if they wanted to get a room together, they could but they need to be safe, cautious and understand possible risks of being active at an older age, having previous STDs or whatnot. If both are of stable mind and able to make that decision, then it was fine to do.
Yes these people are in the home for the sake of their own good, majority of the time, but it doesn't mean they can't think for themselves. Ultimately, until they cannot think properly it is still their decision. If one of the families doesn't like the fact that their mom or dad, grandma or grandpa is wanting to be intimate with someone then they can switch them to another home. Love and intimacy is healthy for adults it shouldn't be disallowed...unless there are certain circumstances that can cause a problem with it as far as mind and body.

Unless one of them has been deemed "mentally unfit" to attend to his/her own affairs (financial, personal, spiritual, whatever) by a court of law (or a proxy thereof), then, yes, as two consenting adults and so long as they are not infringing on anyone else's privacy, they *do* have the right to be intimate, regardless of what family members (or anyone else) want, think, or believe.

Imagine... being an adult, having successfully raised children, having lived and loved and then lost your mate... being physically compromised but of sound mind... imagine your grown children "forbidding" you to begin or pursue a relationship with someone you enjoy, see, and live in close proximity to everyday. I think I would feel horribly betrayed by my children in that scenario.

Tell the family to pound sand. I can't believe there is any other possible answer to this question.

When I read the description, I feel the STD argument is just a weak excuse to argue for a unjust cause. Of course the two elderly have the right to be intimate if they want to, unless, as one of the other answerers already said, one of the two is not mentally sane.
Come on, how much damage can an STD do at that age? Plus, its not like anyone is going to get pregnant. Anyone objecting to a relationship in an elderly home is just not capable of accepting two older people enjoying each others' company, and being lucky enough to spend their last years together.

I hope I can find someone like that when (and if) I am in a situation like that.

Let these people live out their lives sheesh God is love and God said to LOVE!!!!

It depends on why they are in the home. If either has diminished mental capacity or a medical condition that can be aggrivated by intimate contact, it is your obligation as a caregiver to prevent them from getting into a situation where they might make personal choices like intimacy. If they are 100% of their mind and otherwise healthy as expected, then it is a personal choice.

There has to be something good about being in a senior citizen's home. I would allow them to do what they want as long as no one is getting hurt. I doubt there's a whole lot of STDs going around nursing homes.

They've usually worked their entire lives, raised families, contributed what they needed to society, they should be able to have sex if they want to and are able. Besides, unless someone has actually caught them, it's possible they are just keeping each other company. Living in a nursing home and all of the other stressors that come with being elderly, I would think it would be nice to have someone to hold and touch and just be close to.

I wouldn't say anything to the family. As far as I would be concerned, I don't know if and when they're having sex. Nothing to tell.