“Johnny and Amber have the steamiest sex in Hollywood,” a longtime friend of the couple dished.
The swashbuckling Pirates of the Caribbean actor, 50, and his blonde starlet bride-to-be, 28, “have added erotic literature that’s even more explicit than ‘50 Shades of Grey’ to their repertoire,” added the source.
“Amber introduced Johnny to some racy vintage paperbacks and now he’s into collecting old photographic sex books and footage from the 1950s and earlier.
“They’ll read passages to each other from the books to spice up their already-hot relationship."
But it’s just one of the ways the couple, who got engaged on Christmas Eve, has a blast in the bedroom.
“It’s pretty weird, but they’ve got a new thing every now and then -- and this is this month’s fun thing they do together,” revealed the source.