Hurst, 21, initially moved down south on trial, and was rewarded with a one-year contract by coach Tony Rea, having previously played part-time for Swinton in the Championship.
He told the club’s official website: “It was good to get a feel for our game plans and learning how the boys play, it’s good to know how some individuals play with timings and plays.
“Pre-season has gone pretty quick; it’s been a two or three month period, it’s flown by for me and I’ve enjoyed every day. It’s been hard graft but enjoyable at the same time.
“It’s been completely different from what I’ve been used to at home but I feel like I’ve settled in now and it’s been good back at our house as we have Olsi, Tommy and Oscar, can’t complain at all.
“Like I said when I first signed I just want to be competing, pushing for the first team and hopefully on the back of the trial games I can push into contention for Widnes.”
London beat Toulouse 34-0 in another pre-season friendly at the weekend, and face Super League counterparts Catalan on Saturday.