Jizz

This isn't the first Weirdmageddon, the Bill cave painting shows a previous apocalypse (it has fire, weirdness, and some of Bill's friends)

gravityfalls

I tried to avoid posting Tharja... But I caved.

Fire_Emblem_R34

Jon Snow & Ygritte's Cave (NeroXLIV)[A Song of Ice & Fire/Game of Thrones]

WesternHentai, rule34

Trial of Fire and Water [The Secret Cave]

GayPokePorn

Fire Fox (The_Secret_Cave)

gfur