Seren and Charity: The Last Potion (Linework by Rolo) (Patreon)

Art by Rolo, color by me.

The Trebyllec sisters have a tradition of using special potions that Charity makes to help with holding a full bladder; here, while the sisters are out on business, Seren desperately needs a bottle of the stuff so she can wait until they get home. Unfortunately, there's only one left, and Charity needs to decide whether she can afford to give it up - they've been out of the house all day, after all, and her bladder is pretty full too.

Nude alt included.