Sophie and Katherine build a giant nine-foot glow-in-the-dark guitar for a super sweet sixteen party, while Andres and Mommy bake pizza cupcakes to go with it.

Sophie and Katherine must juggle two major cupcake orders this week - one for a birthday party at the National Zoo. But to add to their chaos, the sisters must first clean and sanitized their kitchen before they can even start.

Sophie and Katherine make a giant red high heeled shoe for DC's annual Halloween Drag Race. To join in on the fun, both Andres and Sergio decide to participate in the high-heel run.

The sisters are given a special assignment to bake 10,000 cupcakes for the troops in Afghanistan. Baking 10,000 cupcakes is no easy task, but choosing which flavor makes it even tougher. To help decide, it's time for a good old fashion bake-off!

Sophie and Katherine build a working slot machine for a casino-themed surprise 40th birthday party, while Andres fills an order for every flavor cupcake the shop ever made. But when the girls are pulled over during delivery, the surprise is on them.

It's Mommy and Daddy's 40th wedding anniversary, and Sophie and Katherine are throwing them a surprise party, complete with a portrait of the happy couple in cupcakes. Meanwhile, Andres has ideas of creating his own cupcake.

Sophie and Katherine push themselves to the limit creating a cupcake wedding dress for DC Fashion Week. But after learning their dress has to not only look chic but walk down the runway on a model, have the girls bitten off more than they can chew?

Sophie and Katherine agree to make a giant pink bra out of cupcakes for Breast Cancer Awareness Month, and with their head baker Andres, the sisters compete in a three-way bake-off to create the pink cupcakes that will go with it.

The sisters build a Chinese lion for an Asian-Pacific Cultures event, while Andres has requested the task of creating an Asian inspired flavored cupcake. Meanwhile, the shop raises money selling special cupcakes for the Boys and Girls Club of DC

The sisters lend a hand by helping out a group of Girl Scouts earn their baking badges. But when they are asked to speak and make a giant cupcake badge for a Cookie College, will it be the Girls Scouts who return the favor by helping out the sisters?

Andres and Andrew pitch the sisters on doing something a little outside their comfort zone -- creating a giant tattoo out of cupcakes for the DC Tattoo Expo. Meanwhile, Andres must manage a special bachelorette cupcake order in the shop.

It's the moment Mommy has been waiting for - Katherine is finally engaged! To celebrate the news, Sophie and Mommy plan a surprise engagement party, complete with a giant engagement ring made out of cupcakes.

The holidays bring the shop much to celebrate and much to do. Sophie and Katherine build a six-foot tall nutcracker and Mommy's decorating the shop for the season, which quickly spins out of control.

Sisters and owners of "Georgetown Cupcake," Sophie and Katherine take on their biggest project ever - Katherine's wedding! Watch the stress and strain of planning take its toll on both sisters, as they fight to get Katherine down the aisle.

The sisters of "Georgetown Cupcake" already believe they make the world's best cupcakes, but now they're out to break the world record for the largest one! With the help of their team, will they succeed in creating a one ton cupcake?

It’s Mommy’s 60th birthday and Sophie & Katherine want to honor her in the best way -- with a surprise party, with a Greek statue of Mommy made out of cupcakes. Meanwhile, it's a busy weekend at the shop as the Sisters must fill 8 wedding orders.