The former rugby league star said the disturbing messages in the virtual world “turned his stomach”.

A mortified dad has expressed serious concerns over an online game – aimed at children – which allows strangers to contact and communicate with young kids.

Roblox, which markets itself as a gaming site for kids and teens, invites children into a virtual world to “create adventures, play games, role play and learn with their friends”.

It has more than 30 million unique monthly users – predominantly kids.

Dad Iain Morrison wants the chat facility on the site removed as it allows strangers to message kids directly.

The former rugby league player for Hull, England, claims the game – targeted at children aged 8 to 12 – is being used by adults to groom vulnerable youngsters after finding vile messages from a predator in the iPad game used by his eight-year-old son.

“I was asked to lay down on top of them and they started with sexual movements”

Mr Morrison decided to use the game – dubbed the new Minecraft – after reading a worrying article about it online, The Sun reported.

He asked his two boys, aged 8 and 11, if they used the game and they said they did, so he decided to check it out.

Shockingly within 15 minutes of playing the 33-year-old father was shown sexual positions, and told he was “sexy” and “cute”.

He said from the outside the game looked fine, but when he went into a room with a pool he was immediately “propositioned”.

“They said ‘hi’ so I said ‘hi’ and they asked if I was a boy or girl and my age so I said I was an eight-year-old boy,” he says.

“They asked me to follow them to their house, then into the bedroom and asked me to lay down on top of them and then they started with the sexual movements.

“They said ‘you look cute’ and ‘you look sexy’.

“It was sickening reading all the comments pop up. My kids were completely oblivious as to what the words and stuff meant.” … read more here