[MT] sex with trannsexual and didnt know

so i have watched shemale porn in the past,but i would never actualy have sex with a trannsexual,im a male 24 average size and build,and at a party this hot chick came onto me,and i went with it,i took her home,and things started getting hot.she wanted me to do anal,but i asked why,and afterwards she said shes trannsexual,i was horny and decided to go with it,and i came so fast,i jerked her off,sucked her,fucked her everything,when i was done i felt dirty,and guilty,….