Obviously Bakugou never meant to, he didn't see the point in listening in, but when it came to you he just couldn't live in curiosity- ever- you're in the Bakusquad, you and Mina are super close, obviously as the two only girls in the group, you two were absolutely far too comfortable with each other, which was fair, basically everyone in the group were incredibly comfortable with each other, but when it came to girl talk? you and Mina talked, a lot- it was probably the millionth sleepover of the month, the guys were pretty content playing video games and laughing, Bakugou sat beside Denki while Kirishima and Sero played, both Bakugou and Denki barking orders- well, until Bakugou heard you and Mina's hushed chat and giggles
"Holy fuck" Bakugou mutters under his breath as he listens while also pretending to still be into the game