Ask her to be gentle

Despite the nagging in the back of your head, you agree to it. "Alright, alright. Just promise me you´ll be careful. It´s my first time." Carrie smiles wide and gives you a quick kiss. "Ofcourse I´ll be gentle my little slut. I´m horny not sadistic. Now get down on all fours."

Obeying, you get down on all fuors and feel a shiver as Carrie starts to gently lube you up. She lathers her fingers in lube and gently prods your asshole, slipping one, then two fingers in. It feel a bit odd for you, not unpleasant, but definitely weird. Soon, three fingers were up your ass.

Satisfied, Carrie moved in and lathered her strapon in lube. "Ready for me Slut?" You nod. "I wan't to hear you say it Slut!" "I-I'm ready to get pegged by you."

Carrie pushes in, taking your anal virginity slowly. "Good boy, now take deep and steady breaths for me." Listening to her, you took deep and steady breaths, trying to relax as best you could. As Carrie bottomed out, she leaned down and kissed your neck. "Such a good boy. I´m going to fuck you so much more like this."

Carrie then slowly built up a steady tempo, fucking you with a good rythm, but nothing super fast or hard for your first time. As time went on, you started feeling better, and soon you got rock hard again. Carrie noticed and gave your ass a playfull smack. "Looks like we have one more butt slut in this house!" As she smacked your ass again, something clicked and you came, making a stain on the floor.

As the switch had been flipped inside you, you moaned and groaned as Carrie picked up the pace, getting rougher and fucking your ass hard and fast. You came two more times on the floor, without even touching your cock.

When Carrie was satisfied, she pulled out and cuddled up to you on the floor, letting you be little spoon for once. She gave you lots of kisses on the neck and complemented how you were the best boy, the cutest slut, the best boyfriend anyone could ask for.
Then, she says its time for your surprise...