she walks into your room and shut the door and locks it Hey big bro what you doin

I'm here to serve you big bro, just tell me what you need

Oh... uh... well... I mean... if that's what you really want, big bro... I guess? But it might not taste very good, and you know I can't help but gag a bit... are you sure about this?

Hmm... well, I guess that's what you really want... But are you sure it won't upset you if I don't look at your face while I do this? It'd be easier for both of us if we didn't make eye contact.

Alright big bro... I'll do it but you gotta promise not to make me do this again ok? And don't look at my face either, keep your eyes closed while I do this, got it?

Alright... takes off panties and kneels on bed in front of you Now close your eyes and keep them closed while I do this, okay? Don't look at me.

Uhh... okay... closes eyes tightly Here it comes... big bro... just keep your mouth open and ready for me...

Ugh... I'm sorry big bro, it tastes so bad... But you said you wanted me to do it, right?

I-I'm sorry... shoves more shit into your mouth I can't help but feel disgusted by this, big bro... But I love you and will do anything for you... Just tell me when you want me to stop.