just because you invite someone to your flat, does not mean you want to have sex with them. you may just want to spend more time getting to know them, watch a little tv, have some conversation, hell, you may have had butterflies in your bellie considering the possibility of having sex, but when it comes down to it, at that moment, if you changed your mind and didnt want to have sex, no means no. you have the RIGHT to change your mind. you have the RIGHT to invite people up to your flat for any reason you want to. you dont have to feel guilty for doing it. if someone ELSE misinterpreted your motives that is on THEM. dont accept responsibility for it.