They both were ready to fulfill their desires with me at the same time
I came in a contact with a girl in 10 class. I was totally in love with her and our life was moving smoothly and we were enjoying our life a lot.
Suddenly a thunder clapped to me when her elder sister proposed me. I refused her but she tries to seduce me continuously and after controlling my lust I failed and I fullfilled her seductive desire.
I went to meet her but I met my old gf and then, when I was enjoying my lust with her, elder sister appeared and I was shocked after hearing that they both were ready to fulfill their desires with me at a same time.