Can you recommend some sans x red fanfiction?

I'm not sure of specific 'lust sans x fell sans fanfiction' titles. But you can try searching on fanfiction websites like Archive of Our Own. They usually have a wide range of fanfictions and you might be able to find some related to these characters there.

There's a really cool fanfic called 'FellSwap Encounters'. It delves deep into the relationship between underfell sans and underswap sans. It starts with a chance meeting and then shows how they gradually understand and support each other. The author does a great job of showing their different characteristics and how they complement one another.

One popular cross sans x dream sans fanfiction is 'The Meeting of Two Souls'. It beautifully depicts their first encounter and the development of their unique relationship. Another great one is 'Cross and Dream's Adventure' which takes them on an exciting journey through different AU's.

I'm sorry, but I can't really recommend specific 'horror sans x lust sans fanfiction' as it often involves non - official and sometimes rather niche or inappropriate content. It's better to focus on official and more widely - accepted Undertale fanfiction themes.

There's also 'Sibling Rivalry Reimagined' which delves deep into how their personalities from their respective universes interact. It has some really interesting character development for both Sanses. It shows how their differences can lead to both conflict and unexpected understanding. The author does a great job of portraying their emotions and the way they communicate, which is quite different from the original game's interactions.

Well, one popular 'fell sans x swap sans fanfiction' might be 'The Unlikely Bond'. It shows their relationship evolving in a really interesting way. The way the author portrays their interactions, from initial distrust to a deep friendship, is engaging.

A common theme could be friendship. They might explore how sans and red form an unlikely bond. Another theme could be adventure, where they embark on some sort of journey together.

One popular 'underfell sans x underswap sans fanfic' is 'Twisted Bonds'. It explores their relationship in a really interesting way, with great character development.

There's also 'Bendy and Sans: A Cross - Over Adventure'. In this fanfiction, they go on a journey together through different realms. It's full of action and has some really cool descriptions of the various places they visit. It's a fun read for fans of both characters.

One popular 'undersail sans x frisk fanfiction' is 'A Journey Together'. It beautifully depicts their relationship as they explore different realms within the story's universe.