Trans stepmom

My name is Chris. I am 18yrs old and living with my wealthy single dad. My dad is 45yrs old and good looking. My mom died due to cancer about a year ago. Dad was now dating a woman much younger than him. A busty blonde named Kira. She is so beautiful even i had a thing for her but what to do she was about to be my stepmom. Soon they got married and Kira moved in. We lived happily. Kira was a very good person. Taking care of my every need just like my mom did. So everything was cool until oneday came home after hanging with my friends and found Kira's room door open a little. I was about to cross and i saw Kira infront of the dressing table totally nude. I was stunned to see how hot and sexy she looked. Then all of a sudden she turned around and i got the biggest shock of my life so far. Right between her legs where her pussy should be was hanging a big manly cock. My eyes got big and was shaking not knowing what to do. Then Kira saw me and covered herself up. She took me inside her room and tried to explain herself. She said she and my dad fell in love so it didnt bother her dad that they got married. She asked if i had a problem with her being a transgender. I said it was cool and if i knew earlier it would have been nice. She hugged me and kissed me on the cheeks. She asked me if i ever had been with a trans. I told her i never been but 1 time got my cock sucked by my best friend once and thats it. But i never sucked his cock so i didnt know much about it. Then she asked if i wanted to experience it. I was dumbfounded and wanted to say yes but a word didnt come out of my mouth. I was sitting on the bed. She got up and her sheet fell over leaving her totally naked and now her cock was hard and it was about 7 inches same as mine but thicker. She offered her cock to my mouth and i opened. Slowly she fucked my mouth and then i stroked her cock and began to blow her cock. I have been with girls so i knew how they did it. I sucked her cock for a while then she got between my legs and began to suck my cock. Maybe it was the best blowjob i ever got. Then she positioned me in doggy style and from behind began to lick my asshole while stroking my cock. Never have i ever experienced this pleasure. It was so wild. She even tongue fucked me and even fingered my ass. She asked if i could take her cock in my ass. I told her that i was a virgin and to go slow. She took some ky gel and rubbed on her cock and in my ass. She aimed her cock at my asshole and pushed in. Her cockhead popped in my ass and it hurt. But i held my pain. She began pushing harder until her big cock was inside my ass upto her balls. Slowly she began to fuck my ass. I was in a lot of pain cuz this was the first time i was taking a cock or anything up my ass. Kira was being gentle and try to keep it slow. She fucked my ass for a couple of minutes and laid me on the bed. She got between my spread legs and sucked my cock licking my fucked ass. It was so nice. I would say much much better than the girls i have been with. Then she turned around over me in a 69 position. I began to suck her cock and lick her asshole. I even tongue fucked her ass and even fingered her ass. Her ass was not so tight. I knew cuz dad was fucking this piece of ass everyday. Then she got up and sat on my cock that went right in her hot ass in reverse cowboy position. She began to ride my cock in her ass showing me a nice view of her perfect ass. I grabbed her ass cheeks and played with those soft bubble buns. She rode my cock for a while then got up into doggy style. I got behing her and ate her ass for my pleasure cuz it looked so beautiful and delicious. Then i pointed my cock at her ass and pushed in. I didnt need to be gentle cuz she was no new to anal and was getting ass fucked regularly. I grabbed her big juggs and pounded her ass hard. She was moaning like a pornstar and i loved it. I fucked her for about 15 minutes and my balls started to boil. Kira knew cuz i slowed down a little and told me to not slow down and cum deep in her ass. I fucked and fucked until my balls emptied a big load deep in her ass. I pulled my cock out of her ass and she sucked my cock clean. Then my cum started to ooze out of her ass. She scooped all the cum and swallowed. I wanted to make her cum also so i began to suck her cock and she blasted her cum in my mouth. Then she kissed me and took all her cum from my mouth and swallowed. It was so hot. We cuddled and laid for a while and parted to shower. We now fuck daily and dad doesnt know a thing. I think i have the best stepmom ever. The end