Fifty Shades of Grey fans might soon be able to get their hands on Fifty Shades of Grey underwear.

Showbiz website TMZ says three clothing companies now have licensing deals with author E.L. James.

They’ll also produce T-shirts and hoodies, pyjamas, garters and tights.

The steamy novel has become the fastest selling paperback of all time.

It’s even outsold Harry Potter and the Deathly Hallows.