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Summary: In a loving tribute, parody and Undertale counterpart to the legendary 1999 animated-film classic The Iron Giant, Alphys and Undyne (both simultaneously playing the role of Hogarth Hughes) get themselves wrapped up in a massive government conspiracy when a massive alien robot from another planet named Mettaton (obviously playing the role of the titular Iron Giant) crash-lands on Earth and arrives in the Underground; hilarity of all shapes and sizes ensues.
Rated: PG
Categories: Teenager (13-19), Adventure, Body Exploration, Couples, Crush, Destruction, Entrapment, Fantasy, Feet, Furry, Futanari, Gentle, Giant, Humiliation, Incest, Insertion, Instant Size Change, Lesbians, Violent Characters: None
Growth: Giant (31 ft. to 50 ft.)
Shrink: Doll (12 in. to 6 in.), Dwarf (3 ft. to 5 ft.), Nano (1/2 in. to 2.5 nanometers)
Size Roles: F/m, M/f
Warnings: Following story may contain inappropriate material for certain audiences, This story is for entertainment purposes only.
Challenges: None
Series: None
Chapters: 17 Completed: Yes
Word count: 39423 Read: 56236
Published: November 07 2016 Updated: November 07 2016
Story Notes:
DISCLAIMER: All publicly recognizable characters and settings from Undertale and Iron Giant belong exclusively to their respective owners, and this story is a strictly non-profit fanwork with no intention of infringing upon or making any money off of the original copyright.

Undertale and The Iron Giant belong to Brad Bird (1999) and Toby Fox (2015).

1. Chapter 1 by xandermartin98 [Reviews - 0] (2285 words)

2. Chapter 2 by xandermartin98 [Reviews - 0] (1809 words)

3. Chapter 3 by xandermartin98 [Reviews - 0] (1786 words)

4. Chapter 4 by xandermartin98 [Reviews - 0] (2707 words)

5. Chapter 5 by xandermartin98 [Reviews - 0] (2166 words)

6. Chapter 6 by xandermartin98 [Reviews - 0] (2719 words)

7. Chapter 7 by xandermartin98 [Reviews - 0] (2315 words)

8. Chapter 8 by xandermartin98 [Reviews - 0] (2477 words)

9. Chapter 9 by xandermartin98 [Reviews - 0] (2360 words)

10. Chapter 10 by xandermartin98 [Reviews - 0] (2022 words)

11. Chapter 11 by xandermartin98 [Reviews - 0] (2429 words)

12. Chapter 12 by xandermartin98 [Reviews - 0] (3353 words)

13. Chapter 13 by xandermartin98 [Reviews - 0] (2029 words)

14. Chapter 14 by xandermartin98 [Reviews - 0] (2074 words)

15. Chapter 15 by xandermartin98 [Reviews - 0] (1977 words)

16. Chapter 16 by xandermartin98 [Reviews - 0] (2787 words)

17. Chapter 17 by xandermartin98 [Reviews - 0] (2128 words)