Mary sits and watches as Eric walks off to get her the bean burrito. There was a line at the "Taco Gong" stand, so she figured she had some time. Lifting the flap on her purse/backpack, she pulled out the wooden box of vials, and carefully looked through them until she came upon the same weasel and otter vials that she used for her own transpecies transformation.
After a cautionary peek to make sure Eric was still in line, she pulled of the plastic lid from her friend's "Royal Burger" cup. Her tail wagged in anticipation as she poured equal amounts of the liquid from the vials into the bubbling cola soda, the dark beverage hid the portion of potion that was added.
Mary then put the lid back on carefully making sure everything was exactly as Eric had left it. She looked over and saw that Eric was still waiting in line.
A few impatient moments of swelling anxiety later, Eric returned with a tray of Mexican food wrapped in paper. Mary feared he might suspect something.
Eric put the tray down on the table in front of Mary, "The lady at the taco stand would not believe me that what I was buying for an ottsel. She didn't even know what one was."
Mary started to unwrap her food, trying her hardest to not look at Eric's soda and bring unwanted attention to it, "She must not be a fan of the games maybe."
"I guess," Eric said, "This whole thing is still kinda weird to me..."
Mary looked on excitedly as Eric reached for his (now spiked) soda.