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Undertale (19 undertale stories)

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Lab Love

A story that revolves around the clinical laboratory setting. Irene Bae Joo Hyun, the intelligent and elegant section leader of the Immunology-Chemistry department in Korea-Seoul General Hospital (KSGH) has her world rattled when she meets Angela Kang

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First to bid gets this promo placement across all tag listings for 1 hour! (300 kp)

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He Belongs To Her, I Belong To Him

By Amelia_Dreemurr_18 Updated
Tags  crossoverfic   undertale   kuzunohonkai   chara   sans   frisk   asriel   toriel   grillby   monsterkid   fuku   asgore   alyx 
Characters Chara, Sans, Frisk, Asriel, Grillby, Soul of Perseverance
With 6 chapters, 710 views, 1 comments, 5795 words
Status [M]

Undertale: Frisk's new secret *Revised and reuploaded*

By TheFriendlySkeleton Updated
Tags  undertale 
Characters Frisk, Sans, Chara, Papyrus, Toriel, Alphys, Undyne, OC
With 1 chapters, 1050 views, 5840 words
Status [M]

Undertale: Hidden Truth

By FriendlySkeleton Updated
Tags  undertale 
Characters Frisk, Sans, Chara, Papyrus, Undyne
With 1 chapters, 250 views, 2371 words
Status [M]

Giantess Toriel X Asriel: Motherly ery

By xandermartin98 Updated
Characters Alphys, Asriel, Asgore, Sans, Toriel, Amalgamates
With 8 subscribers, 1470 views, 9668 words
Status [M], [TW], Members Only, Subscribers Only

Giantess Undyne X Alphys: istic Boogaloo

By xandermartin98 Updated
Tags  torture   femdom   mindcontrol   undertale   giantess 
Characters Alphys, Undyne, Amalgamates
With 6 subscribers, 930 views, 4998 words
Status [M], [TW], Members Only, Subscribers Only

Giantess Alphys X Undyne: Bigger, Longer and Uncut

By xandermartin98 Updated
Characters Alphys, Undyne, Amalgamates
With 7 subscribers, 1280 views, 4318 words
Status [M], [TW], Completed, Members Only, Subscribers Only

Alphys VS Undyne

By xandermartin98 Updated
Tags  comedy   romance   satire   lesbian   undertale 
Characters Alphys, Undyne, Sans, Papyrus, Burgerpants, Nice Cream Guy, Gaster, Amalgamates
With 7 chapters, 2 subscribers, 510 views, 2 comments, 11276 words
Status [M], Completed

Alphys Loves Feet

By xandermartin98 Updated
Characters Alphys, Undyne, Riverperson, Endogeny, Asgore
With 1 subscribers, 590 views, 4941 words
Status [M], [TW], Members Only, Subscribers Only

Tempted By The Feet Of Alphys

By xandermartin98 Updated
Characters Alphys, Undyne
With 1 subscribers, 2610 views, 2411 words
Status [M], Completed

Lemon Fed

By xandermartin98 Updated
Characters Alphys, Lemon Bread, Reaper Bird
With 8 subscribers, 380 views, 3505 words
Status [M], [TW], Members Only, Subscribers Only

Alphamalg: The Completely Degenerate Series

By xandermartin98 Updated
Characters Alphys, Lemon Bread, Endogeny, Asgore Dreemurr, Snowdrake's Mother, Reaper Bird, Memoryhead, Asgore, Toriel, Flowey, Sans, Papyrus, Catty, Froggit, Burgerpants, Mettaton
With 6 chapters, 34 subscribers, 580 views, 24567 words
Status [M], [TW], Completed, Members Only, Subscribers Only