I drew this today.. it started as a crapdoodle.. and now it's a not-so-crappy doodle.

But that is debatable...

Oliver was an only child in this world (that would be our current world), but in other realms he sometimes has a brother or a sister.. it can be anything really, his stupid lives are inconsistent. In the 47th realm, there lived Olivia, his little sister. She discovered that she can also intrude in other dimensions and forces her way into this world at random times via her brother's stomach (it's handy for storing portals and loads of miscellaneous junk). They made a deal to share their pets and he'll pay the bills while she's his bodyguard whenever he goes to other realms.

Oliver tends to make his overall form more presentable when she's around, he usually looks like a trainwreck..
His bandages will be clean and he'll have normal teeth instead of his usual sharp ones. [link]

It's not pleasant dealing with Olivia, her bullets not only injure paranormal entities, they wipe out opponents from their current world, erasing all memories of them unless they're under the curse of Reverens Noctia, a benign version of Oliver's curse. She never speaks much, even if she does, her hair gets in the way. For every opponent she kills, a drop of blood appears on her clothes, so she's given up on wearing pretty dresses, choosing to wear absorbent bandages instead.

No matter how nice they are to each other, neither sibling wants to give up in the battle to own the family dog called Kitty. (the critter Oliver's holding here) >>> [link] BATTLE TO THE DEATH