You abuse her throat

Aiden: that's it keep sucking your new master's cock

Byleth shows you what she thinks about that statement

Aiden: oh would you look at that

Aiden: it seems that you can still use your hands, since I ordered you to only use your mouth

Aiden: good to know

You take your cock out of her mouth

Byleth: oh my mouth, you fucking asshole

Byleth: listen to me carefully, you'll never break me, I'll never call you master

Aiden: yeah yeah

Aiden: you'll break, but let's have some fun before you do

Aiden: I command you to grab my cock and slap it as hard as you can against your face

Byleth: YOU CAN'T BE SERIOUS

Byleth body does as you command and grabs your cock and starts slapping it against her face

Aiden: that's it

Aiden: I command you to keep going until I say otherwise

Byleth keeps slapping your cock against her face

Byleth: S-STOP P-PLEASE

Aiden: master

Byleth: WHAT?

Aiden: call me master and I'll stop

Byleth: FINE, PLEASE MASTER STOP

Aiden: I command you to stop hitting yourself with my cock

Byleth stops

Aiden: see, was that now so hard

Byleth: no it wasn't

Aiden: no who?

Byleth: no master

Aiden: good girl you deserve a reward

Byleth: what kind of reward, are you going to finally leave me alone?

Aiden: oh don't silly, you've earned the privilege to deepthroat my cock

Byleth: ARE YOU INSANE

Aiden: oh Byleth, you really should learn just to obey

Aiden: I command you to lie down on the floor and open your mouth

Byleth's body does as you command

Aiden: now, let's abuse that throat of you

You ram your cock down her throat and start facefucking her

Byleth: FUCK I CAN'T BREATH, HIS COCK IS WAY TOO BIG

Aiden: oh fuck yeah, you're throat was made for this, it's so fucking tight

Byleth: IT'S TOO MUCH, I'M GONNA PASS OUT

Aiden: oh fuck I'm cumming

Byleth: WHAT, OH FUCK HE'S FILLING MY MOUTH WITH HIS CUM, IT'S TOO FUCKING MUCH

your cum is too much for Byleth to drink it all so you take your cock out while your still cumming and shoot the rest over her entire body

Aiden: fuck, that felt good

you take a look at Byleth who is completely covered in your cum

Aiden: looks like APHRODISIAC AROMA has taken effect

You notice that Byleth's pupils have turned into hearts