Fiona comes back

You are sitting there covered in Christy's cum when you hear a voice from the door way "Doug what's going on here you were only suposed to measure Christy".

Looking to the door you see Fiona standing there in a towel still slightly damp from her shower looking quite angry to find you covered in her sister's cum.

"Uh! Sorry!" You say trying to wipe some of the cum off as if that would help.

"That's funny." She says as she steps closer "you think im going to forgive and forget if you say sorry".

You pause, wondering how you should respond before...

"You are a disgusting cum guzzling whore." She spits.

"Oh fuck! Fuck, that's not how it happened!"

Fiona narows her eyes as she says "explain it then"

You take a deep breath looking to find the words while keeping your calm.

You try to get Fiona to understand that Christy asked for help getting hard for measuring then after needed more help to get rid of her erection.

Fiona is about to speak when Christy awakens from her orgasmic stupor and starts to defend you saying she was at fault. Fiona stays silent for a moment before sighing looking at her sisters pleading expresion and your fearful face she suddenly grins as she starts to laugh.

When Fiona stops laughing she tells Christy she loves her and would not begrudge her getting sucked off by Doug and that maybe they could share you.

Astonished at this sudden change from hostility to acceptance you thank Fiona and Christy, still reeling from the shock of not getting dumped and kicked out of the house.

When Christy says to Fiona "Ohh i know we could spit roast Doug" making both girls look down at you.