Rianna Jarrett described her Brighton debut as '"a dream start" after her brace helped see off south London rivals Crystal Palace 3-0 in the Women's FA Cup.
The Republic of Ireland forward scored in each half to put Brighton 2-0 ahead by the 46th minute.
Ini Umotong added a third as the Seagulls set up a home clash with Birmingham on March 15 in their first quarter-final appearance since 1994.
Jarrett left her home town club Wexford Youths to sign for Brighton on a six-month contract in January.
Jarrett said: "As a striker you always want to score goals and you always back yourself but that doesn't mean it always happens. (I'm) obviously delighted we got the win and kept a clean sheet but on a personal level, it's great to get two goals as well. It's a dream start.
"We knew that coming here was going to be tough. They didn't make it easy for us, and they didn't lie down so credit has to go to Crystal Palace."
Brighton manager Hope Powell said: "They battled really well, made it quite difficult, but I think pretty much we were in control. We pretty much dominated the game, no disrespect to them - but I would have been disappointed if we didn't dominate."
Looking ahead to the quarter-finals, the former England boss said: "I'd just like to enjoy this at the moment. They work so hard so we're pleased they get an opportunity to stay in the match."
Crystal Palace boss Dean Davenport said: "It's always going to be tough against a team in a league above us. I thought we did really well, I'm really pleased."
Davenport rested three senior players ahead of their next Championship fixture on Sunday, which he referred to as Palace's "bread and butter", and he gave game time to some younger members of the team, including Lizzie Waldie and Mia Lockett.
"They held their own and all in all I thought they did exceptionally well," Davenport added. "It's been a good evening and we've learnt a lot as well, so we can't moan."