Adultery HOW I BECAME A CUCKOLD?

[playboy9673]

my name is kanna. i completed my btech in 2018 from reputed university in andhra. to tell about myself i'm medium complexion, with weight 75 kgs and height 5.9 ft. i'm not basically into cuckolding, i don't even know anything about it until some incidents happened in my life. let us go back to the beginning of my journey into becoming the cuckold.
it was june month of 2014, when all the universities start their classes. first day i stepped into the university searching for love of my life. i know you guys are confused let me go back a little. Her name is kowsalya, we both studied in the same college from KG to 10th.
we became very close friends and cannot leave each other. so, in my 9th standard i have proposed her. she accepted my proposal a year later and from then on we are in a relationship. we used to talk daily from morning to night except the times we sleep. after our 10th we are separated during our intermediate. we both went to different hostels, she was in chaitanya girls hostel and i was in narayana boys hostel. every andhra people will know these two names . we both planned to study in same university after our intermediate. here starts the story which brought me to a different world. 
let me tell her about kowsalya. she was 5.5 ft. weight 55 kgs. dusky complexion but very beautiful. she was so slim at hip and has a right amount of size of boobs 34B and ass 32.
i stepped into the university searching for her. she was outside her class with her friends group. her friends group consists of three people. kowsalya, manisha and shirini. i went to her and greeted. she was very much excited and so happy to see me. she talked to me for so much time and introduced me to her friends. oh god! they were beautied. i know it was wrong to see other girls while your girlfriend is by your side. but, they are beauties. manisha is the most attractive girl in the group, not only in the group in her whole class. she was fair, same height as my girlfriend.. a hourglass figure with nice boobs and a round ass to die for. shirini was different, she is 5.8 ft. taller than both. slim and round ass with perky boobs.