How to watch 18+ videos on youtube without signing in ?

sometime its annoying when youtube ask you to sign in for your age verification. so now i will show you how to watch 18+ videos on youtube without signing in. this trick is 100% working
1)  first get the url of the video you want to watch as shown below:-

       https://www.youtube.com/watch?v=YQVUIVE2M_Q

2) then copy the video id. for the above link video id is  YQVUIVE2M_Q
3)now paste the video id in the link given below:-

 http://www.youtube.com/v/videoid?fs=1

4) paste the video id you copied in step 2 in the place of videoid
5)DONE
                                                        ENJOY YOUR VIDEO

http://www.youtube.com/v/VideoId?fs=1#sthash.1YHc3DGu.dpuf

http://www.youtube.com/watch?v=4Xkh6j7RMqk

http://www.youtube.com/watch?v=4Xkh6j7RMqk