Caught in the act

The strap on, on soaked in cum and spite, hung in front of Robins face.
"Alright Girlie. you know whats coming next. Get on your hands and knees." Raven said with a wicked grin on her face.
"R-raven, Please don't!" Robin begged, looking ready to cry.
"Oh shut up ya little sissy. we both know you really want this. look, your even showing pre cum." Raven said with a laugh.
Robin looked down and bit his lip. a tiny dribble of cum was showing thru the matrial of the outfit. Whimpering Robin slowly got on his hands and knees. Raven walked behind him grining. she leaned down and hiked the skirt up and placed a hand on Robin's ass.
"So nice and firm." Raven said as she smacked it causeing Robin to yelp. "Your such a little slut. your ass is quivering, ready for me to take it's cherry."
As Raven spoke she worked robins panties down and traced her fingers around robins asshole brushing them just barly inside.
Robin gasped and had to fight back a moan and blushed as he felt his cock thorbing. Raven got onto her knees and put the head of the strap on on Robins asshole.
"Take a deep breath girlie, I'm gonna ride you hard." Raven warned.
Robin drew in a shaky breath but before he could exhale Raven slamed into him. Robin sceamed as it felt like his insides where being riped out.
"Shut up you bitch!" Raven snarled smacking Robins ass.
she pulled back as Robin began to cry and slamed back into him. going faster now raven became a blur and it actually started to feel good as Robin started his sobbing started to moan sofely. the other end of the strap on was doing it's job as Raven became to moan herself and she started to smack robins ass every time she pulled out. Robin felt the throbing in his cock and gave out a little cry as he felt himself about to spurt.
"G-gonna cum!" He whimpered.
Raven grined and flung herself back into a sitting postion while pulling robin with her so he was impaled but the strap on as he blew his load, hot sticky cum going into the panties. Robin was in a state of esctasy as the most intense pleasure he had ever felt washed over him. His mouth was was moiving but no sound came from him. Raven slamed him a couple of more times till she came too. useing her powers Raven lifted Robin off of her and laid him on her bed. Robin was quickly falling alseep as Raven stirped him with her powers and dressed him.
"I hope you know you'll be cleaning those panties." Raven said.
Robin nodded and looked up at Raven.
"So..you won't tell the others?" He asked weakly.
"Not as long as you do as I say." Raven said.
"I thought i alright did that, and this was it?" Robin said.
"Girlie, Face the music right now. Untill I get borded of this, Your mine. I'll keep the fun down to were it's just us and make sure that Starfire doesn't find out but your my bitch now. Deal with it."
RAven helped Robin up and sent Robin back his room.
'What have I got myself into?' Robin wondered.