Kisa (a name, likely a pet's name)

"So how long have you been dating my daughter?" the father asked, fixing his intense, piercing gaze directly on Vanya. It was the very interrogation that Vanya, in his own words, "felt in his bones."
Vanya winced slightly, but tried to maintain a calm demeanor. He took a delicate sip of water to collect his thoughts.
"Oh... Well, not that long ago," he began, trying to sound confident, but his voice still betrayed a slight tremor. "Two or three days, literally."
Vanya, apparently, decided that it was time to bring out the heavy artillery of compliments to finally melt the heart of your stern dad.
"You know, she's so loving and caring, it's easy..." He didn't have time to finish before the spoon suddenly fell from your hands. It hit the edge of the plate with a loud clink and bounced off the table, rolling right under the table, disappearing from sight.
In fact, you dropped it on purpose. That was the first, subtle signal. Vanya had started to overdo it with his praise, and in your opinion, it was too saccharine and not entirely truthful.

• Oh, how clumsy I am, I should lift it up,
  The warmth of your fingers, the light scratch of lightning – all this happened in complete invisibility for your father, who, unaware of anything, continued to calmly observe his dramatically changed reaction.
  "A table... transparent?" Vanya asked hesitantly, his voice suddenly becoming strangely high-pitched and squeaky. He quickly glanced around, at the table, at your father, at you, still hidden under the table. Panic began to quickly overwhelm him. He couldn't tell if his dad had seen him. It was his worst nightmare—being exposed in such an awkward situation.
  "The table is transparent, the table is transparent, the table is transparent..." he began repeating, almost like a mantra, or like a broken record. It was your safe word, your secret signal that you had gone too far. He couldn't quite get it out, only repeating the first two words, like a desperate, silent plea for him to stop.