Why penises SMILE during sex and 5 more weird facts you never knew about them

Most of you probably think you know your penis quite well enough, but there are six super facts about the old chap that we bet you've never heard - and they're pretty special.BEWARE MAY CONTAIN SEXUAL CONTENT OR ITEMS WHICH MY UPSET OR OFFEND-READ MORE-http://www.mirror.co.uk/news/weird-news/penises-smile-during-sex-5-5697131