Lean Tuna and Her Stepbrother’s Plan to Become a Fatty Tuna

“You, you’re too bad at s*x!”
When he was finally caught cheating, my boyfriend verbally abused me by saying that I was terrible at s*x and called me a dead lay just like a frozen lean tuna.
I will become skillful at s*x just like a fatty tuna woman, make him speechless and declare it himself.
Involving her younger stepbrother, the air-headed lean tuna’s challenge has began.