My sister has always been super kind... She's been especially kind since our mother passed away. "I'm your mother, so please talk to me about anything... please..." she said, so I told her I was worried about not being able to lose my virginity, and she said shyly, "We're brother and sister, but I'll help you lose your virginity!" I forgot to pull it out because it felt so good, and I came inside her! "I can't hold back with just this," she said, and climbed on top of me, burying my face in her big breasts and hugging me in a piston-like position!