First Xavier (and the others), instead of writing a message with 2 languages misted, you can write it completly in one language ant then make a translation into another or more. It's an advantage of this website according to couchsurfing or hospitality-club. Only appréciations about other bewelcomers don't have this fonctionality. But, don't éditer now your first message, the thread may disappear of the group (it's a bug of this forum).
Nearly 3 years 1/2 after couchsurfing.org subscribing, It was finaly by this website that I found my first traveler to host. Acording to nudity (to sleep or when it's hot), y profile (in 3 languages) is clear about my choices.
The 3rd evening, I showed him photos of a rainbow gathering in portugal (with naked persons after a meal), and also new year in Stockholm photos where I stayed one more nigth in an hotel of the airport wher I made a photo of me naked in front of a miror. No particular reaction, may be a smile. Vincent (18 years old) coosed then to take a shower where he stayed long for washing undervears . I finaly, I went washing my hairs at the lavabo.
Then, for the fist time in 3 evenings, I undressed to go to bed first but I realised I forgot my watch. So I went back naked to fetch it. Vincent was now ready to get out of the showert with a towel. He saw me taking thje watch and going back. We spoke normaly as if I was dressed. It's also possible Vincent saw me getting out of the bed naked before dressing. He was not himself a "naked sleeper". He tooked off sockets but kept undervears and the jean the he just unbuttoned before going in his sleeping bag
So, everyone did as he wanted without being bothered by the presence of the other.