‘penis expansion’ stories

After Jacob asks her out, Emily's body begins to change.

Jen buys herself a slave collar, unaware of its true power.

A cock that grows larger every time it cums!

A girl inherits a very unusual condition.

Rachel wakes up with a big surprise between her legs.

Nanomachines that add up to huge size.

Alex and Sarah discover some expired magical trinkets.

Excitement grows, they try to understand what's happening.

People doubt Abby, but those who don't get rewarded!

Sarah, Vi, and Lily throw an interesting Halloween Party.

Wishing fountains sometimes do grant wishes.

A man saves a witch as she grants him his deepest desire.

A camgirl who does transformations finds herself overwhelmed.

A hypnotherapist finds out her new client can bend reality.

Jen and Travis use the collar to have a fun, milky night.

A farmer's son plants a magic seed to satisfy his lusts.

Gina buys an expansion pack to get things even wilder.

What if Santa could grant your perverted wishes? (BE & PE)

A shapeshifter reveals her abilities. Feelings are confessed.

Hyper hung futanari Valerie Song enjoys some brunch

Ground-breaking new medicine increases the female libido.

A Skyrim Story.

A bored stranger plays a game with a couple in a mall.

A wild evening of expansion for Saffron and Nick.

Hyperspermia streamer's balls grow after every session.

A sultry sex-sorceress casts her spell on a devout knight.

Submissive wife switches, uses blessed cream to edge husband.

Breast & Penis expansion, alien, outerspace, action, sex.

An experimental aphrodisiac goes beyond expectations.

Ben meets 15226, for the first - and last - time.

Richard can't stop growing.

Two horny friends drink a beverage with horny side-effects.

Hyper hung futanari Valerie Song takes a yoga class.

A couple finds a creative solution to their fertility issues.

Jack learns the fun, and danger, of controlling appearances.

With his new-found powers, Michael plumps up his harem.

A stranger teaches some people to respect books.

Dennis meets an alien, takes a survey, receives a gift...

His cock is magicked - will he get too big to handle? (End)

A Skyrim Story.

A Mass Effect Story.

Gina and Luca are bored during quarantine.

A semi-triumphant return!

A genie encourages two people get know each other better.

A man with nothing to live for finds a second life...

Bachelor turns into a cum factory on New Year's.

Lt. Gallo attempts to regain control of the ship.

Elena wants to be filled, and orders the perfect partner.

Skyler's boyfriend got him some presents with room to grow.

Hyper hung Makti struggles to control her ever-growing body.

I encounter someone at the park and grow.

A Wonder Woman fan meets Aphrodite & is transformed by her.

Developments, downsides, and betrayals!

It only happened some nights but, when it did...

Ben claims Bethany, and begins her change as well.

Intergalactic pleasure-miners abduct two humans. BE+PE

Inalu falls into another world and undergoes transformations.

When one's partners both love what your new potion does...

A rookie succubus gets much more than she bargained for.

There's a reason some spells are in the restricted section.

Sometimes a demonstration is the best way to make a sale.

Zoey is about to have the best birthday ever.

Adam grows when he's desired. Then the Internet finds him.

A young woman learns how malleable her avatar really is.

The Conclusion to both Choose! and Arguments and Alterations.

A paladin in service of a Fortune Goddess makes a discovery.

They transform into each other's desires. Mindy fights it.

A sexy security system complicates a simple break-in.

Christina's bond with her coach grows stronger...

A man visits Xurnami's clinic with some changes in mind...

Tyler wakes up on the first day of the reality shifting game.

Jennifer & Sam dive deeper into their sexy game.

Last after a week the girls get back to finish the game.

Years later. Richard continues to grow...

Sydney Bristow steals a Rambaldi device.

Jennifer meets Sam and finds a unique game.

A strange virus sends men to the doctor with new growth...

An older couple reconnects while on vacation.

Xulia is reunited with someone from her previous life...

Lex gets her own appendage.

The second succubus arrives!

Dennis returns to find a coed harem in his apartment.

A cold-hearted detective tracks a reality-warping criminal.

A man who wants power to kill witches ends up becoming one

Dennis returns home after a hard day, to find coeds waiting.

Lisa throws a BIG party; then Epilog.

Cursed by a Sorceress, Cham transforms Faye.

A ghost story with benefits.

Jackie and Kate play a transformative card game.

Johnson's wife cannot leave him alone.

Dennis moves to LA and finds his people.

A Mass Effect Story: The Invasion begins.

The Johnsons settle into their new life and fame.

Andrew has a stimulating checkup.

A wager, a contract, a dream.

A Mass Effect Story Ch. 3.

The dots are connected.

Transition.

The Johnsons embark on a bright new career.

Honoka is the new intern in Wonderland.