A teenager whose lottery win turned her into an overnight millionaire said that, when the truth sunk in, she screamed so much that it alarmed her dog, who bit her on the bottom.

Would-be lawyer Ianthe Fullagar, 18, from Ravenglass, Cumbria, won more than £7m in the EuroMillions lottery, on only the second occasion she had bought a ticket. She was tempted to try after hearing that the jackpot was more than £100m.

"At first I thought I had matched three numbers, so I couldn't believe it when I realised I had the five main numbers plus one Lucky Star," she said.

"I checked the ticket and saw that the average win for those numbers was £280,000 and couldn't stop screaming. My mum called the National Lottery Line and it was only then that I realised I had won a share of the jackpot. We were both screaming so loudly that my dog, Brock, didn't know what was happening and bit me on the bottom."