Can you elaborate more? Did you put the nurse outfit on? Then you should be able to play the Fun scene which should make the lock go away. Albeit there are no images yet for it, so clicking on it would lead you nowhere.
Does it have to be on? I had it unlocked but I didnt know the nurse outfit had to go on : P. MB. (EDIT: I got it, just had to spam chat with him)
Glad to hear you managed to get it. ^^ Was worried for a moment that there was a bug.