My Mother, the Ultimate Wingwoman

My OTP became real, and someone's mother played matchmaker. They were betrothed as children, then locked in one room. Ahem, one surprise after another.

He said, "My mother, why do other parents object when their kids are gay, but you not only support it, you even betrothed the two of us?"

His adorable mother said, "What era are you living in? Who isn't a danmei fan these days?"

"There's a reward if you sleep together."

"You got it."

Theme: Uh, the author was forced to write this