This usually happened during the sleepovers and when bath or shower time came around, I always insisted on not being alone. They didn't think anything... of being naked in front of me since I got naked in front of them first. I wasn't too shy then. I considered myself average in the looks department and I took awhile to fully develop.My breasts didn't finish their fullness until my early 20's but I always had a nice round firm butt. Since I am average height (5' 8") for a girl, my legs weren't. I realised she was panting and moaning, but I was surprised that fucking her ass would cause her to get so turned on. Then I realised what was happening. Marcus had fingers down between her pussy flaps, probing for the entrance, rubbing against her clit. Her pussy juices ran down and lubricated my cock enabling me to get me whole length in her asshole. "I'm getting close , very close" Marcus moaned, I was worried that he might cum and that would be it, so I suggested that he might like. "You might actually enjoy living as a woman," she added, smiling.I had to make a decision so in an impetuous action I responded, "Well, Okay, I guess...I'll give it a try. The position sounds wonderful, but I don't know about this female impersonation thing." I had to refrain from biting my tongue as I had a memory flashback. I hoped my nose wasn't growing longer. "Very well? it wont be so bad... I'm confident we can pull it off," she repeated. "I'll advance you your first month's pay to. ” That was all I needed she I moved behind her. I bent Michelle Hwa over a little and sliding one arm in front of her thighs so she wouldn’t get away I pulled my arm back and gave her the hardest spank I could – WHACK! I was surprised when she jumped up from the shock. I first thought I had really hurt her but she smiled…so I gave two more. She winced in response, but she also smiled.I was about to say something when Michelle Hwa wordlessly pulled my pants down and looked at my erection through.