TdDk dating and assume Bk is ace because he just *never* expresses...

Till one day he shows up with some rando woman and introduces her to TdDk as his new girlfriend.
And TdDk are *bewildered* and *upset* about this and know something is up.
And Bk just blusters and never gives a concrete reason besides "I just like her okay".
And Bk doesn't want to! They are acting like there is something wrong with him when he's totally fine!
Guess who is under the influence of a quirk after all!
He asks TdDk how they knew something was off, because he felt and was acting totally normal besides dating her.
And Bk is like: Is that an offer?
Dk: Do you want it to be?
And welp now Bk has TWO boyfriends.