It was only after she'd seen Hagrid two weeks earlier that she'd realized she wasn't supposed to see him at all. Fortunately she'd said nothing to her...classmates, and the next day she'd been warned by McGonagill to tell them nothing, explaining to her that Imogen had encountered him because Hagrid had foolishly exited his cabin to retrieve Fang, who somehow had gotten loose. Perhaps Hagrid would have thought to tell Imogen to say nothing about him, but she had run off suddenly because she was. I was completely flat chested, but wore a bra with inserts that gave me modest, but acceptable looking breasts.Everyone fully accepted me being trans and I think my Aunts assumed that eventually, I would make a decision to fully transition once I was ready. Other ideas were developing in my head though.Although I never went through many of the physical changes associated with puberty, I definitely made up for it in terms of horniness. My cock worked just fine and I spent hours masturbating in. I laugh now thinking back, the only muscle girls are interested in is the one between his legs. We used to call it their 'Light Muscle', as a dirty thought or a tit flash could make it rise.I lay back on the edge of me bed, somewhat in a provocative pose, my flannel skirt mid thigh, but my legs crossed, squeezing my thighs as it felt good and matched my feeling.How can a teenage girl have such feeling for her brother, you my ask, but you see, we dissect our brothers into two parts, the upper. God it felt amazing and the noise Celia made on me entering her almost made me spurt which I knew would be much longer especially the speed she was riding my cock. I sat up to get a better look at her and she flung her arms around me and really went to town. She was a fantastic fuck and she knew exactly what to do she was in full control. She sank her teeth into my neck sucking hard when she started to shake. “ I’m cumming, im cumming” she started to squeal. “cum now for me” and I didn’t really.