Hey there. Love your post, and I think we could probably help each other out a bit ;-)

I play a variety of large males - from anthro and feral horses to elephants, t-rexes... even a rhino or orca from time to time.

I like feral, primal settings - but you're looking for something a bit more interesting, hmm?

For a horse - you're a new farmhand, eager to please unaware of the owner's penchant for hazing new hires. You're told to go get the semen from a wild stud - who decides to take advantage of your naivety and force you to get fucked by a full horsecock.

Elephant - you were told to go in and give "full service" to the newest client at the massage parlor you work at, but you weren't told he was an elephant nearly twice your size! When you can't finish the job, you have no choice but to let him instruct you, and then use your tiny body however he sees fit...

T-rex - humanity genetically engineered reptilian super soldiers, then hung them out to dry. You're drunk in a bar on the wrong side of town and decide to make a new friend - but you didn't anticipate the effect the ex-sergeant would have on you, towering over you, muscles bulging, smelling like an animal and eying you like a predator...

Also up to hear any other ideas or species you have an interest in. I furnish reference pictures for all my fursonas as well, so if there's one you want to get a look at, just ask!

Hope to hear from you soon. Cheers!