Request: Incest stories where one person doesn’t recognize the other

Hi all – this is certainly a niche.

I love written porn – literotica and sexstories.com are some of my favorites – but am having trouble finding more of these.

Looking for stories where – either due to a costume, the lights at a party, whatever – people commit incest without realizing until the end. Also a plus for stories where they commit incest unwillingly, but not forcefully – maybe they’re sharing a 2-person costume and the dude can’t avoid slipping inside.

Any suggestions?

Source: reddit.com/r/Erotica/comments/kbtkrr/request_incest_stories_where_one_person_doesnt