"We are just like any other couple that wants to make that commitment for life," Sanders said, referring to herself and fiancee Meaghan Yaple.
A ruling on the constitutionality of Proposition 8, the statewide ballot measure that bans same-sex marriages, will come down next Tuesday. The justices are considering a series of lawsuits seeking to overturn Proposition 8 as having been put on the November ballot improperly.
"We are just like any other couple that wants to make that commitment for life," Sanders said. "We love each other. We have to do the same thing every other couple does for a wedding: We got to pick out flowers and got to decide on cake, so we hope the courts will .. not uphold Prop 8 so we can legally get married."
Sanders said she was hopeful about the court's decision.
"I'm really excited to see what the courts will do on Tuesday; I'm very optimistic that they will decide on fairness," Sanders said, adding that "I will stay in California and continue to fight for full equality [regardless of the decision], because I think that it is important that California recognizes gay marriage."
The court also will decide whether to allow the estimated 18,000 gay couples who got married in California before the measure passed to stay wed.
Court observers have doubted the Supreme Court would invalidate the ban, which was approved by 52 percent of the state's voters.
Since the arguments, three states -- Iowa, Maine and Vermont -- have joined Massachusetts and Connecticut in making same-sex marriage legal.
Organizers for both sides say they will be sending out emails and text messages the instant a decision is made public.
Plans are already in place for protests or celebrations, depending on the outcome and the organization.
The news should break around 10 a.m. on the day of the ruling.