A doodle I did for a roleplay I’m in the middle of doing.  
(I’m still getting used to drawing on a PC. :c)
 
Basically, due to Trixie’s past actions, it’s my fanon that she’s had kinda’ on a watch list by Celestia and that to prove she’s a got citizen, she go do scientific favors, donate blood, and do volunteer work even if she doesn’t want to. Anything is better than prison, really. – Trixie gets a call from the sperm bank asking if they could use her for a couple of days. They were currently in the middle of developing a brand new form of sperm donation… Via robots! Because technology is still tricky business in Equestria, it’s easier to reverse the process of building one with magic. Let me explain…
 
Somehow (i’unno, this all fun and games, remember) a unicorn has written a spell that turns things into robots off a specific design. Simple enough, if they turn Trixie into a sex robot, all they need to do is take her blueprints and reconstruct another Trixiebot, and then turning the original one back into a unicorn.
 
They do this! And Trixie is turned into a robot created for the purpose of sperm extraction, through vigorous sex! She’s a complex bot with AI and even a personality, just like her old self… only 500% more horny. They leave the robot at her apartment, and when her roommate comes home to find the robot in the hallway with a note attached, he can’t resist his urges. He scrunches up the note which Trixie specifically requested to be placed there, asking not to be toyed with and explaining the situation she’s in, and switches her on!
 
By the time that they give her roommate the scroll that turns her back, he’s donated more than ten liters of horsejizz… and has no intentions of stopping there. He scrunches up the scroll and uses it to clean out any remaining sploodge the fat lips of Trixie, getting ready for another oral session.~
 
“Get ready for MORE Trixie!~” She taunted, with the audible VRRRRR of her vacuum-like gob starting up.