`Damn, he is hot. I wonder how it feel to have him fuck my brains out.`Shit. My nipples were very hard and I felt my thong get even wetter, to the poi...t that it would start to drip soon. `Damn girl, control yourself.`I was turned to Mark’s side and I was just about to stand up and ask permission to go the toilet when he suddenly looked directly into my eyes and put his hand on my knee. I was lost for words. His hand was so warm, my heartbeat accelerated and I felt my throat dry up.“So” – he. What we do here is important. Think about my words when your Melanie is bent over a desk and one of our graduates is about to break her in. She'll soon be taking boys behind the bike sheds and either giving them a blowjob or letting them fuck her." She's not that type of girl," Steve spat."They're all that type of girl unless she's a lezzie of course, in which case she'll spend all her spare time with her tongue in her girlfriend's pussy or licking her bum hole."Steve bit down on his tongue. ."And I did. Leaning over her a bit, my hands on the bed on either side of her, I pounded into her ass, slamming my hard shaft to the hilt inside her tight hole again and again. Sweat dripped from my brow onto my sister's stomach, mingling with her own. Her moans became cries, her eyes closing and opening, torn between losing herself in the sensations and watching her brother fuck her ass. At last she chose the former, arching her spine as she lay her head back, a long continuous moan emerging. "Oh damn baby, you sure this is the first cock you've had?!"Amanda taunted me as I felt her hand run through my hair and eventually grip my hair and pull me off."Time's up! Let's see that cock!"She said smiling at me like she already knew what was about to happen. I stood up, undoing the belt as I went and as I got upright shrugged the robe off revealing probably one of the hardest erections I've ever had."Oh my god, look at how turned on you are! You love my BBC you naughty little slut!"I felt.