Bradley Cooper says he will 'never' have sex with Jennifer Lawrence

Bradley Cooper and Jennifer Lawrence are starring together for the fourth time in the upcoming flick Joy, so one could be forgiven for thinking there's more to their chemistry than what we've seen onscreen.

Well, Howard Stern has asked that very question, but in his own unique slimy shock-jock kinda way.

"When are you two gonna have sex?" he asked the 40-year-old during a radio interview. "Everyone is waiting for that."

Hear Bradley's response in the clip above.

The interview got even more tense when Howard suggested Jennifer, 25, was too old for him anyway. Dude.

The actor, who split with 23-year-old actress Suki Waterhouse in March, is currently dating Irina Shayk, 29.

Erm, that makes Irina four years older than Jen. Looks like someone needs to get his facts straight.