While nearby porn stars autographed action photos and flashed their assets for camera-clutching fans at the annual Adult Entertainment Expo, Brett Drysdale discretely demonstrated 'the newest breakthrough in sex technology'.

He slipped two fingers into a rocket-shaped RealTouch device 'developed and tested by a former Nasa engineer' contains belts, lubrication jets, heating elements and other gadgetry programmed to give men the feeling of sex.

One end of the canister-type devices sized to fit easily in one's lap is made of soft 'Haptic' synthetic material akin to that used for nipples of baby bottles.

The faux-flesh wall is slotted to allow the insertion of a body part of a man's choosing.

RealTouch devices connect to computers with USB cables and synchronise with adult movies streamed online so the inner workings replicate what a fellow might be feeling were he to be the man in the film.

'You watch the action on a screen and a signal is sent to the box to simulate what is happening,' Mr Drysdale said.

The device works with video from an online RealTouch 'theater' at a price of one dollar per minute. RealTouch is priced at $150 (S$223) and begins selling in the US in February.

RealTouch product manager Drysdale said on Sunday that it will be available internationally by mid-year. -- AFP