Surely the whole premise of sleeping with, but not dating is promoting what could be deemed as promiscuous way of life, not that I would want to judge others if that's one of their peccadillos, there are worse things in life. Although if you are one of those who are prone to indulge in that sort of behaviour, then yes I think it is a good idea if the bed time companion expels their air before they climb into bed. I mean, 20 years old in the great scheme of things is relatively young, compared to most posters on this site, but if their appearance suggests otherwise, am I alone in thinking no one wants to share their bed with a perishing old fart. 