The Transsexual Teacher

Greg's eyes bugged out when he saw her cock fully hard. It was nine or ten inches and looked practically as thick as a baseball bat. Her smooth, hairless balls looked like the eggs of an extinct dinosaur. Ms. Sin giggled at the expression on his face when he saw her cock. She loved that look.

"I'll take another kiss now if you don't mind. Right here." She pointed at her cock.

Greg inched forward on his knees until he was between Ms. Sin's legs. His lips gingerly touched her shaft. It was like electricity shooting through her cock.

"Do that again." Breathlessly, she told him.

Greg took that cue and kissed up and down her veiny shaft. His soft, young lips felt destined for her swollen, rigid cock.

Ms. Sin couldn't wait any longer to get her cock into her sweet mouth. She grabbed her cock and a handful of his hair. Ms. Sin aimed her cock at his mouth, "I'm going to feed you."

Greg opened his mouth wide. She used the opening to push her cock between. The head brushed through his lips, entering his mouth for the first time. She moaned and let it sit there for a minute, taking in all the pleasure.

Ms. Sin fed another inch into Greg's willing mouth. He didn't know what to do with his tongue and flicked it across her cock head. That encouraged her to go deeper. All at once, Greg could feel that giant stick hit the back of his little mouth, he momentarily panicked, trying to pull his mouth off her cock, but Ms. Sin wasn't having that. She held his head tightly.

"Don't work yourself up!"

Greg tried to calm himself down. That was hard when Ms. Sin kept fitting more of her cock meat into his mouth, until the head hit the opening of his throat.

"I want you to create a vacuum seal." She told him.

His lips and wet mouth wrapped tighter around her cock. Ms. Sin threw her head back, keeping her tight grip on his head steady. Her hips started to grind back and forth, jabbing her cock in and out of his mouth. Greg tried to repeat what Ms. Sin had done with his cock, and swirled his tongue around the shaft. Her cock was a lot bigger though. Each time it went deeper in his mouth and pressed into his tight throat.