Video: Nick Jonas & Bear Grylls strip off and go for a dip!

Pop heart-throb Nick Jonas and wilderness hunk Bear Grylls stripped to their old ripped underwear, ran across snow and jumped into a frozen lake…. for our entertainment.

The 23-year-old pop star and 42-year-old adventurer, look more like a hot lad and dad porn film waiting to happen than an outdoor reality television show – especially with the intimate foot massage and protective dynamic.

Watch the insane pant splitting (seriously check Gryll’s arse) action below: