Would/did you ?

Yes - but gave them separate rooms. I did hear the floor boards creaking though ?

All of my children were allowed to sleep with their partners at home, if you’re aware they are in a sexual relationship there’s really no point in putting them in separate rooms. I admit, like one of you ladies, I did start putting my sons young girlfriend in the spare room, when she frequently stayed, only because she was only seventeen, and I felt I had a duty of care. Their rooms were close together, and some way away from the other bedrooms, so I assume a bit of bed hopping went on, at least I’d tried!
In the seventies I was living with my boyfriend, we were never married, but we had a child, when we stayed with my parents, he had to sleep on the sofa! Why on earth did I put up with it?? It seems ridiculous now

In the 70s my parents couldn't face us sharing a room even though we were living together with our own house and mortgage.
( We let them sleep together when they came to stay and we stayed in our bed. ) Mr LD's mother wasn't worried and was open minded.

I was always liberal with my sons and they never abused it, only bringing home long time girlfriends. C'est la vie.

when DH and I were young and dating trust me NOTHING killed the mood quicker than now MIL telling us to take the big room adding with a wink that she would be turning her radio up

By friends parents were the opposite and she got a right kick out of finding sneaky ways to DTD..

So well played MIL

My parents wouldn't have allowed it and I wouldn't have wanted to upset them. Things were different in the 60's.

I would have been different from them but it never occurred.

I wouldn't have allowed them to bring casual one night stands home and sleep with them. It would have had to be a definite relationship.

I knew my son and his girlfriend (now my DiL) were ‘together’ but they always had separate rooms when they stayed over at our house...until the Christmas I had unexpected visitors (another story, blame the weather) and ran out of rooms/beds.

You should have seen my son’s face when I said ‘do you and XXX (girlfriend) mind sharing your room tonight?’

Laugh! I nearly wet myself! After that, of course, they always shared.