TWO docile tortoises launched into a sex frenzy when Fifty Shades of Grey came on TV.
Owner Jack Osborne was amazed to see male Raphael mount platonic female pal Donatello as topless Christian Grey seduced Ana Steele.
Dad-of-one Jack, 26, filmed the reptile romp on his phone as his wife Sammii, 24, sat engrossed in the steamy film.
He said: “I was sat on the living room floor packing some stuff together while my wife watched Fifty Shades at 11pm on Friday night – I’m not a fan of the film myself.”
“Out of the corner of my eye I noticed something move in the tank and I knew what was coming.
“I was sniggering to myself as I picked up the phone and sure enough they were going for it.
“It only lasted a couple of minutes and then it was all over.
“Donatello stayed where she was while Raphael jumped off and walked away.”
It pans to Raphael, who looks at the camera then humps Donatello as Ana gasps “enlighten me” in the background.
Soldier Jack, of Southend-on-Sea, Essex, said: “I was surprised because they normally keep themselves to themselves. One’s usually asleep all day while the other sits in the corner.
“But the film must have had some effect as Raphael suddenly jumped up and was full of life for a few minutes.”