Well, his cock wasn’t putty, certainly, more like concrete or better yet, ceramic. But she instantly knew the power she now had over him with one simple touch.
Looking up, she gave him a wry, almost evil grin. “Just relax, Billy Boy. I may be inexperienced, but I think I know enough to rock your world.”
With that she brought her lips to his head. Parting them, she slowly, gently, sucked him into her mouth. Her jaw strained to accommodate his girth, but within moments she had what felt like at least a good four, maybe five inches inside.
Billy’s groans became gasps. “Oh, fuck!”
Breathing through her nose, Jenny began slowly, bobbing her head in steady rhythm, sucking at the frenulum and neck of his glans while her hand kept a tight grip at the root of his shaft. Drool ran from the sides of her lips on each withdrawal, already making a mess, but that was okay, she knew guys liked that.
She also knew they liked the soft gurgling noises she made as she continued to work his shaft deeper into her throat with each downward thrust. To her surprise, she didn’t gag until the halfway point.
Jenny reflexively pulled back, sputtering spit bubbles as she caught her breath. “Jesus fucking Christ this thing is massive! I can’t even imagine trying to fit this python in my pussy!”
Billy’s voice trembled as he managed to reply, “It’s… not as bad as you’d… think, you just have to… go slow.”
Jenny took a fresh grip on her brother’s cock, two hands this time. “Yeah, well, I don’t think we’ll be going quite that far tonight. For now, I just wanna…”
Jenny again engulfed him, deep as she could. She held there long enough to again establish breath control through her nose before continuing her blowjob in earnest.
Billy’s legs shook as his sister threw every trick she’d learned watching porn at him; twirling tongue, sloppy sucking, her hand a slippery spit covered blur tugging at the lower half she couldn’t fit past her over extended jaw.
Billy couldn’t believe what a little tigress she was. What Jenny lacked in experience, she certainly made up for in enthusiasm, and Billy couldn’t help thinking that, with a little time and practice, Jenny could be just as good a cocksucker as his mother.
The thought of Mom made his balls swell and Billy soon felt the familiar tingles deep within that signaled his pending release.
“Jenny, I’m…oh, fuck, I’m close! Like, really close! You might wanna…”
Jenny heard his warning but didn’t slow her pace. She was determined to see this through, to take his load, to swallow every drop.
A determination that quickly faded as the first blast erupted in her throat. Jenny gagged and choked on the river of cum clogging her windpipe. Her survival instincts kicked in and she pulled back off his cock, just in time to catch the second blast across her face.
Despite her disorientation, Jenny managed to keep the hand she’d been stroking him with moving as Billy continued to ejaculate a wild, voluminous amount all over her face, breasts and stomach. She could feel it in her hair, and a massive blob dripping off her right ear.