French unicorn

The act of a man having sex with a person from behind (i.e. 'doggy style') until he nears orgasm, whereupon he withdraws, straddles his partner's head and places his erection on his or her forehead so that it protrudes at the moment of ejaculation like a magical unicorn horn.

My boyfriend surprised me with a French unicorn for my birthday.

French unicorn by Hautecake January 23, 2010