Unless you want a "broken tit" like he ends up with after trying it.

We warned you that you were going to be seeing Jamie Dornan and his 'Fifty Shades Darker' co-star Dakota Johnson everywhere in the coming week and boy have they not disappointed.

While Johnson is playing filthy Mad Libs and sticking things in gap tooth, Dornan is out there charming audiences and showing off his insane party trick that ended up being incorporated into the film.

The problem is, he can only do it once because it really, really hurts. How bad? Well he ends up with a "broken tit" after this attempt on 'Conan' last night.

Conan's face says it all.